Exactly.
Fitness test them all every Friday. Scientifically against the clock.
Any who don’t hit the benchmarks in fitness testing, then they are deemed ‘not fit’ and not selected in the squad.
At least that way, going in to every game you have a squad (it may be reduced in numbers) that are deemed to be fit.
Players & managers then can’t use the excuse ‘I / he wasn’t fit’.
If we then lose, the opposition are either better or luckier than us.
11 blokes who are 100% fit, giving 100% effort for 90 minutes.
It’s all we ask for.