I'm flattered you ask me, but I think I'm going to have to disappoint you. Unless I know your history, your strengths, your weaknesses, and your daily training, and how that works, I don't think I can give you a specific program. You say you are already doing Lydiard. If you are doing it right, I think you can still do that for a few years, as long as you see improvements. Actually, if you are a high school age runner, and you and your coach aren't sure about what you are doing, I'm more inclined to steer you towards Daniels Running Formula, as the training plans and paces are well defined and easier to follow. If you want to improve how you follow Lydiard, you should go to the Lydiard Foundation website and talk to the people there. There are presentations which give some practical recommendations for building your schedule. If you want modern training advice, don't ask me -- I'm the one asking that question. But just the same, I will mention a couple points below.So my first question, are you in high school? I'm going to borrow Canova's phrase that "you build your aerobic house, then you add furniture". If you are in high school, you still need to build your aerobic house before worrying about if you are getting enough SPECIFICITY. I would say in high school, a typical milestone is to work up from 40 mpw to 70 mpw, not to mention a couple "Summer of Malmos" and maybe "Winter of Malmos".I'll borrow another "Hadd" analogy of "squeezing toothpaste". Maybe Lydiard can squeeze 95%, while Kadaffi and Canova can squeeze 98%. You are still at 70%, so still have a lot of training options that will reap improvements.Cabral and Hadd wrote the "2 kinds of runners" thread. Which one are you? This might lead me to suggest some "aerobic" 10x400 reps at 10K pace, with short recoveries, in your aerobic phase.And of course, one purpose of training is to prepare you for race conditions. But I don't know of anyone who runs like you suggest, with 1600m time trials everyday. Usually most plans don't stray too far from 3 quality workouts (1 speed, 1 tempo, 1 long) per week, with the remaining workouts easy or recovery. You should do your "time trial" once, or maybe twice at most, per week. And only at a point in your training when you have developed the proper support for it. Training, even the modern way with emphasis on SPECIFICITY still requires some variety of paces and distances, and the super-compensation principle means that after hard workouts or races, you need time to recover/heal -- that's when the improvements come. If you race everyday, you will quickly get stale, times will stagnate and drop, and you will basically have to finish your season prematurely, if you don't injure yourself first.You say you are following Lydiard, but I don't know what that means to you. Are you doing 2 hour long runs? Are you doing 100 mpw? Are you doing all the "classic" phases in order, taking 24 weeks to prepare for "THE RACE"? Your sample weeks are 21-28 mpw, and doesn't look like anything close to Lydiard. That's too low even for low mileage enthusiasts.Don't forget, even the "outdated" Lydiard approach would have you doing SPECIFIC 1600m time trials in the COORDINATION phase, each week progressively faster. Also some 800m races, and 3200m races. The time trials are SPECIFIC, and the other racing is also highly relevant.If you want to keep your Lydiard training plan, but want to modify it to include more SPECIFICITY, that can easily fit in the ANAEROBIC and COORDINATION phases. (This doesn't "fix" everything Kadaffi mentioned, just adds SPECIFIC workouts). Suppose your goal is a 4:20 for 1600m, and you think this is realistic. Instead of "run one, jog one, 'til you're tired" approach to intervals, one training goal during the ANAEROBIC phase would be to improve your speed, and get used to your goal race pace, by interval training with SPECIFIC pace of 100m in 16 seconds, 200m in 32-33 seconds, and 400m in 65 seconds. Then your training in the COORDINATION phases would include a progression that extends the time you can continuously hold the pace. For example, 4x400 the first week, 3x600 the next week, 2x800 the following week. You might also include some 1200m, 1600m, and 2000m time trials, to determine and correct any weaknesses of speed or stamina.I think you shouldn't compare yourself to Kenyan runners, including Lagat. Low mileage for Kenyans is still 80 mpw. I don't know Lagat's mileage but maybe it's unusually low, like 50-60 mpw, because he was a miler. That means he's a unique exception. In any case, he's a proven world class miler, with some 25 years of running experience, who's moving up to the 3K and 5K. And I think I read he increased his mileage to support the longer events. As I mentioned before, I came across a Canova quote that Kenyans usually have 12-15 years of long fast running in them, by the time they are 19. They've built their aerobic house.You mentioned the FIRST program, and the words "scientifically proven". I'm not sure if you mean the same, but I know about a FIRST program. When I looked at FIRST, they do 3 runs per week, one speed workout, one tempo, and one long run, plus suggest two cross trainings, e.g. swimming or cycling. These guys were tri-athletes. There training includes all the typical quality workouts, but none of the easy/recovery days, replacing them with rest or cross training. Regarding their scientific studies, unless things have changed in the last couple years, they lack controls. Essentially they have a bunch of success stories, but it's not reliably compared against other programs to conclude if it's better or worse.Hope this helps clarify a few things.