For me, I feel that the game is punishing user who likes to train local player. For example, an exceptional staff with 50 000 to 70 000 wages, the bidding can reach to 400k- 800k. For a 20k wages staff the bidding can reach to 2mill or more. To get another youth coach need to fork out additional costing for bidding and support too. Lastly due to weekly increase wages, every 3 or 4 season user need to release and rebid those staff just to ensure the club is profitable.
For my case, my club is always hovering 20-30k profit per week just to train player for NT team. It is hard to save money just to get a better staff for a better future :(