Programming, programming; can you write me a program? Will you write me a personalized program? How much to provide a personalized-individually-taylored program? because I am a special and unique snowflake.
It is clear, that the pluralism of strength training programs underlines the fact that getting stronger for the vast majority of people is actually very very easy to do. This is due in-part to the novice or intermediate level ability of the majority of athletes and gym users, so much so, that precise programming has not yet become necessary. If the exercise prescription contains progressive overload, and time for recovery and adaptation, then progress is essentially certain.

The in-season collision sport athlete has a much tougher job in exercise prescription.
For the in-season collision football player however, additional other stresses compound the problem of progress through over-stimulus and the inability to gain sufficient rest. Once the stress of the game and the tactical-technical practice becomes great enough, general capacity adaptation will no longer take place. The question ceases to be, can I get stronger and faster? but, can I maintain my strength and speed. The specific conditioning and technical skills will rise through the season but the general capacities will plateau or decline.
I will postulate here that there is a point that can be labeled to describe the transition between several phenomena. For the low training age of general capacity athlete, there is an ability to continue to get stronger as the technical-tactical work increases and continues. This is due to two reasons. a) Their general capacities are poorly developed, eg their strength capacity may have been undeveloped and this progress may only have started when the new season began. So there is a long way to go in terms of their potential. b) The technical-tactical work may not contain very much volume. Think of a low level football player and he may only practice once or twice a week and play once a week. That is not a great deal of stress, so strength development may continue for some time.
For the athlete of greater training age, there will be a point where the technical-tactical work has now inhibited further progress in general capacities. At this point, probably before the first game of the season, the athlete will have ascended his or here highest level of general capacity. This too can be for two reasons. a) Their general capacities are well-developed and the new influence of the competition season will stunt the optimal environment for further development; this is ok, because getting better off the field is not as important than winning on the field. b) The stress of the competition season is so great, that even though the athlete’s general capacities are intermediate and far from their genetic potential, recovery from technical-tactic stress makes progress impossible.
What does this do for in-season programming? In my opinion this is where things get difficult and require real time adjustment. There is no point planning a specific strength maintenance program when the athlete comes in and cannot complete the exercise due to acute injury. If the athlete’s knee is banged up you may not be squatting again for some time, you might only be able to deadlift. Twisted ankle? Back extensions and GHR’s might be the only method of keeping posterior strength up.

Some general tips…… rows, deadlifts and back extensions might be the last few things you can still doing terms of strength work. Squatting and pressing might be off the table when joint inflammation is taken into account. Closed chain work, in both strength training and conditioning might be all the options that are available. Forget running when coping with lower body joint injury, you might be forced into rowing and cycling or this is finally where the eliptical machine is useful. Conditioning in season may start to appear less and less coherent with the work to rest ratios of the sport. League and Union will have an aerobic component that makes sense for left ventricle work to be prescribed. Recovery work of 15-20min in the 120-140bpm range is useful for normalizing sympathetic to parasympathetic dominance and active recovery that brings blood to the damaged tissues of the body has always made sense to even the ancient athlete.