Sprry for the lack of updates....Been busy today...
There is no IR or reserves/aaa......if they have a WIS season, you use it. Then they progress to their next available WIS season. You due to injuries, you could end up with 2 players that would be in the same slot.
One of them needs to be cut or traded to someone who could use em.
Yes, in the off-season. You can have overlapping years, ie two player slotted in '86. But by the time the draft starts (ie when I say it's set up and ready to start) your roster must be correct.
You can not magically change one of their seasons to make em fit. They progress to the next available season.