With FB/P, I tried not to take guys who didn’t project to 75+. A few exceptions, but too many exceptions on a team can sink a FB/P.
I tend to generalize like this, understanding this is a generalization, and can vary depending on distribution usage and what the other guy is doing.
In normal sets (not FB, press, or press/man), at normal pace, with normal usage:
60 stamina is at or near optimal for 16 minutes
70 stamina is at or near optimal for 20 minutes
80 stamina is at or near optimal for 24 minutes
90 stamina is at or near optimal for 28 minutes
If playing uptempo, subtract 2 minutes. If high distribution, subtract 2 minutes. If playing FB, press, or press/man, subtract 2 minutes for each.
If playing slowdown, add 2 minutes. If playing zone, add 2 minutes.
Not perfect, but decent rule of thumb, I think.