I believe generally that if you disagree the onus is yours. However, here are a few general citations that I'd suggest you look into and see where your perspective comes to be. In reality, I don't expect you to necessarily reach the same conclusions as I. Judging, however, by your omission of my last sentence from my first post, I'd bet we're closer to agreement than you think.
Don't get me wrong, I'm by no means advocating the running component be shortened, just that a well-designed, well-monitored, complete program will yield better results. We're talking about 10% of a program here.
As to your citation demands, see below.
Regarding your first request, I'd have you check Viru's second chapter for a fairly comprehensive evaluation, and a basic exercise physiology text to confirm here (Madarame, 2010; Powers, 2005; Viru, 1995).
Second:
Check Viru (1995) for hormonal response to exercise than correlate with Bachman (2010) and Coviello (2008) among others regarding hematocrit. Additionally check Bompa (2003) and Verkhoshansky (2008, 2009) regarding the myoglobin remark.
Third; Injuries.
See Rauh, et al (2006 and 2007) among many others (some reference in Verkhoshansky, 2009, but didn't look for that page). You can correlate this with data demonstrating typical mechanical patterns associated with specific injuries and a movement pattern based mitigation. Some stuff on the FMS in NFL players, too (Kiesel, 2009) stands out.
Fourth: Evidence based opinion, yes. If you've read it and don't agree, I'd love to hear your counterpoint for the sake of good discussion.
VO2 Finite (Verkhoshansky, 2008 and 2009 has many references). Fractional Utilization Questionable (Stoa, 2010 among others). VO2 Falls or fails to improve (Galy, 2003, Verkhoshansky, 2009). Attenuates loss of stride length during fatiuge see Esteve-Lanao (2008). Running economy check Yamamoto (2008) for a fairly comprehensive review, Paavolainen (1999 and 2000)--admittedly, only decently qualified athletes--as well as Esteve-Lanao's introduction for a brief synopsis of much of the literature concerning RE and specific modes of exercise amongst plenty of others. Regarding power characteristics, again, evidence based opinion supported by Paavolainen (2000), Nummela (2006), and Yamamoto (2010).
Your last point:
I fail to recognize how that's an opinion any more than it's common sense. If we use intelligent program design (including in our running, which is included in athletic development programming) with sensible progressions we reduce the risk of injury, if we improve tissue tolerance, alter mechanical patterns associated with injury via appropriate mobility/dynamic stability/etc we'll be good there. Some good data in basketballers on this end if I recall.
Further, the biggest issue in running quickly is overcoming gravity. Consult a physics book, and obviously we need the staying power to do so repeatedly and efficiently. Weyand (2010) suggests that the rate at which we are able to produce force is the best way to improve maxV times and earlier (2000, I believe) suggested that it was just a mass specific force idea.
Again, you don't have to agree with my assertions, but I'd love to hear your argument.
Citations:
Bachman E, Feng R, Travison T, Li M, Olbina G, Ostland V, Ulloor J, Zhang A, Basaria S, Ganz T, Westerman M, Bhasin S. "Testosterone Suppresses Hepcidin in Men: A Potential Mechanism for Testosterone-Induced Erythrocytosis." Journal of Clinical Endocrinology and Metabolism (2010). Print.
Bompa, Tudor O., Pasquale Mauro G. Di, and Lorenzo Cornacchia. "Chapter 1." Serious Strength Training. Champaign, IL: Human Kinetics, 2003. 13-14. Print.
Coviello AD, Kaplan B, Lakshman KM, Chen T, Singh AB, Bhasin S. "Effects of Graded Doses of Testosterone on Erythropoiesis in Healthy Young and Older Men." Journal of Clinical Endocrinology and Metabolism 93.3 (2008): 914-9. Print.
Esteve-Lanao J, Rhea MR, Fleck SJ, Lucia A. "Running-specific, Periodized Strength Training Attenuates Loss of Stride Length during Intense Endurance Running." Journal of Strength and Conditioning Research 22.4 (2008): 1176-83. Print.
Galy O, Manetta J, Coste O, Maimoun L, Chamari K, Hue O. "Maximal Oxygen Uptake and Power of Lower Limbs during a Competitive Season in Triathletes." Scandanavian Journal of Medicine and Science in Sports 13.3 (2003): 185-93. Print.
Madarame H, Sasaki K, Ishii N. "Endocrine Responses to Upper- and Lower-limb Resistance Exercises with Blood Flow Restriction." Acta Physiologica Hungarica 97.2 (2010): 92-100. Print.
Nummela AT, Paavolainen LM, Sharwood KA, Lambert MI, Noakes TD, Rusko HK. "Neuromuscular Factors Determining 5 Km Running Performance and Running Economy in Well-trained Athletes." European Journal of Applied Physiology 97.1 (2006): 1-8. Print.
Paavolainen L, Häkkinen K, Hämäläinen I, Nummela A, Rusko H. "Explosive-strength Training Improves 5-km Running Time by Improving Running Economy and Muscle Power." Journal of Applied Physiology 86.5 (1999): 1527-33. Print.
Paavolainen L, Nummela A, Rusko H. "Muscle Power Factors and VO2max as Determinants of Horizontal and Uphill Running Performance." Scandanavian Journal of Medicine and Science in Sports 10.5 (2000): 286-91. Print.
Paavolainen LM, Nummela AT, Rusko HK. "Neuromuscular Characteristics and Muscle Power as Determinants of 5-km Running Performance." Medicine and Science in Sports and Exercise 31.1 (1999): 124-30. Print.
Powers, Scott. Exercise Physiology: Theory and Application to Fitness and Performance, By Scott K Powers and Edward T Howley. [S.l.]: Brown & Benchmark, 2005. Print.
Rauh MJ, Koepsell TD, Rivara FP, Margherita AJ, Rice SG. "Epidemiology of Musculoskeletal Injuries among High School Cross-country Runners." American Journal of Epidemology 163.2 (2006): 151-9. Print.
Rauh MJ, Koepsell TD, Rivara FP, Rice SG, Margherita AJ. "Quadriceps Angle and Risk of Injury among High School Cross-country Runners." Journal of Orthopaedic and Sport Physical Therapy 37.12 (2007): 725-33. Print.
Støa EM, Støren Ø, Enoksen E, Ingjer F. "Percent Utilization of VO2 Max at 5-km Competition Velocity Does Not Determine Time Performance at 5 Km among Elite Distance Runners." Journal of Strength and Conditioning Research 24.5 (2010): 1340-5. Print.
Verkhoshansky, Yuri. Block Training System in Endurance Running. Verkhoshansky, 2008. Print.
Verkhoshansky, Yuri Vitalievitch., and Mel Cunningham. Siff. "4.4 Strength Training and General Endurance." Supertraining. Rome, Italy: Verkhoshansky, 2009. 247-52. Print.
Viru, A. A. "Chapter 2: Hormones in Adaptation to Physical Exercises." Adaptation in Sports Training. Boca Raton, FL: CRC, 1995. 21-46. Print.
Yamamoto LM, Lopez RM, Klau JF, Casa DJ, Kraemer WJ, Maresh CM. "The Effects of Resistance Training on Endurance Distance Running Performance among Highly Trained Runners: a Systematic Review." Journal of Strength and Conditioning Research 22.6 (2008): 2036-44. Print.