i tend to let my lineups choose when to train stam
say you have a huge drop off between your starters and your bench in skill
that will typically mean that ur bench will get less minutes in the game and make your starters less effective because they will get tired
but that is just my opinion
i tend to value both about the same stam or ft
a game clinched by made fts feels good, but then again if your players hadnt tired u may have won it without needing the freethrow :)