How does each Staff attribute impact a player’s performance or development?
A high attribute will typically deliver success more often, and more consistently than a lower one. That means a scout with 20 for Judging Player Ability and Judging Player Potential will submit top quality reports on players that can be relied upon wholly; it means a coach with 20 for Tactical Knowledge will provide the best tactical advice, and it means a Physiotherapist with 20 for Physiotherapy will be proactive and responsive in their treatment of injuries.
That much should be relatively clear from the outset, but what about staff who score 10 in these areas? How does that affect my players?
In short, they become less reliable, but with that comes a few caveats. For example, if you have a Physiotherapist with 10 for Physiotherapy but the league average for staff employed in that role is 7, you have a significant advantage. The advice and treatment dispensed might not be the best it can be, but it could be the best it can be for your club, for your level, and at this current time.
Numbers become relative to the standard you’re playing at. A top-quality coach working with players below his ability is worth their weight in gold; the effect they can have on your squad will be more tangible and obvious than someone working at the level suitable for their ability; you’ll be able to see it in the development of your own players, the insight you’ll have into other teams and players if it’s a quality scout, and so on. Conversely, if you have a sub-par member of staff working at a level they’re not qualified for, and is below the average for your club, for your level and at this current time, then you’ll be somewhat handicapped by their work until you’re able to upgrade that job.