I've spent a lot of time testing the franchise coaching abilities, specifically the scouting ones: Eagle Eye, Talent Evaluator, and Fit Finder.
Quick note up front: the positional abilities seem to work as described. Stack a couple and you'll see a real difference in what gets unlocked for that position. This post is about the scouting abilities, which fail in ways I can't explain.
Problem 1: They don't expire. They reset.
Every scouting ability is listed as lasting 5 weeks. Say you're out of the playoff race and equip one in week 15. You have 4 games left, so you'd expect 4 weeks of the ability, then either 1 week carrying into next season (worst case) or it burning off during the playoffs and offseason, since those count as weeks too (best case).
Neither happens. If the season ends with time left on the ability, it fully resets and locks in at preseason week 1 the following year. You have no choice. You're stuck with the same scouting ability for a full 5 weeks of the next season.
Problem 2: The abilities that should be the most powerful either do nothing or do the opposite.
Talent Evaluator. Supposed to give a 10% reduction on talent range unlock per ability, so 30% stacked across HC, OC, and DC. In theory that drops the threshold for seeing a prospect's round from 95% to 85% with one, or 65% with three.
It doesn't lower the threshold at all. With one or three equipped, you still need 95% to see a prospect's round.
Stacking more than one actively breaks it. I tested a prospect at 100% unlocked: with two equipped, the round disappears entirely. With one or zero, it shows fine.
This one is already well documented as not working, and I can confirm it.
Eagle Eye. Supposed to give a 10% reduction on two-letter range unlock. Normally you need 70% to get every grade down to two letters (A to B instead of A to C). This should lower that to 60%.
It does nothing. With it off, 70% players show two letters and 60 to 65% players show three. With it on, no change at 60 or 65.
Stack three and it gets worse: players at 70% now show three letters instead of two.
Fit Finder. Supposed to be a 20% reduction on archetype unlock. This is filler. Even in the best-case use (equip it the week prospects are revealed), you learn everyone's archetype by about week 3 anyway. So you spend 5 weeks of a slot for roughly 2 weeks of a head start on archetypes, with no info on abilities and nothing you can act on. Truly useless ability.
The bigger picture
Positional abilities work, but they cost 6 weeks, don't reveal much on their own, only really deliver if you stack them, and they carry over too.
From what I understand, these have been broken for several years. It's a shame, because the idea is good. It just never got finished.