Numpty >>
wednesday february 26 - 11:36, Edited
wednesday february 26 - 12:15 It's your decision so you should try and work out the numbers yourself. But here's my effort.
The TC upgrade costs an extra $9 million per season in increased maintenance. Besides the potential lost interest from reducing your capital balance by the amount of the FA 1 building costs. This will depend on other variables but might be another $15 million per season. So that's around $24 million in increased costs and lost revenue.
With 2 staff, a player of Talent 5 would earn an extra 3,775 xp per season. Which is not huge. How much value would that add to every player?
Unless you were doing a lot of farming it would be difficult to earn the extra $24 million just to break even. You could also potentially earn extra income by having a slightly better first team and winning more cup matches.
There are too many unknowns to be certain, but on balance @Losing's approach seems the most sensible.
Edit - correction to change TC costs to approximately $9 million.