I liked the concept, although not the specifics, that Pre did under Walt McClure in HS (derivation from Bowerman I believe).
Cycles of 3 weeks (a HSer program so needs to be adapted to longer distances) - 2M, 1M, and 1/2M. The point is to include (assuming you are able to do this for many months with cooperative weather or indoor availability) both Goal pace with Date pace in progressive sessions. The specifics I didn't like were lots of very short repetitions, even for 2Mile pace. I use standing rest progressing to jogging recovery, where the Pre program had an interval jog (recovery) of half the rep distance from the start.
The point is to to do volume work to begin a training phase and gradually reduce the volume (classical peaking) as you get closer to the main racing season (the Pre example started in November and went to May). Many programs start with just Date pace progressing to Goal pace, but by including smaller amounts of GP from the start you adapt your body to that pace - as long as it is realistic for you.
e.g you could do 8x 1000 at 5k pace, where 2-3x 1k is at Goal pace (1:1 work:rest ratio), and 5-6x 1k is at Date pace (1:half w:r). This progresses to more reps at Goal pace and fewer at Date pace (and jogging recovery)until you are able to do 5x 1k at goal pace. later you can add sprints to the end of this session as well, as an advancement of strides that have been done along the way. This can be adapted to Mile RP reps, etc.(which should be shorter).
i.e. Ph 1: 1) 10 x 800m (3-4x800 GP, 6-7 x 800 DP); 2) 8x 1000m (2-3x 1k GP, 5-6 x 1k DP); 6 x 1200 (2 x 1200 GP, 4x 1200 DP).
Later - 6x800 GP to 5x1k GP to 4x1200 GP (recoveries are a jog, almost a float). Finish off sessions with 200-400m fast as preparation for a kick.
Sessions should have a progession built into them, even if you can't actually do that on any given day, eventually you will. I believe that too much goal pace work (full session) too early can result in later stagnation and only doing Date pace work can mean (injury/illness at the wrong time)you don't get to much goal pace work.
The point of the above is that it isn't just the volume of the repetitions, but also the makeup (increasing distance of reps, and the type of interval/recovery and of course pace) of the progression that is the stimulus to development. It also means that you have to be firm with regard to pace - real date pace and realistic goal pace. Tests - races or time-trials - along the way need to confirm these paces.