This is a very difficult question to answer without knowing the specific variables of the individual athlete involved. However, the general rule is this: program your maximal recoverable volume. Strength is increased, largely, by training with high amounts of volume. Therefore, put as much volume into your program as you can recover from. The most helpful tool that I have found for this is the attached chart. Click here to download.
Bryan Dermody, Powerlifter/Former Strength & Conditioning Coach