A few suggestions, not knowing if they have been suggested or not before:
Transfer Price Estimate - Try to implement a few skills in the estimation, not only the highest skill, maybe the main skills of that certain position. Maybe link to a list of the last 10-20 trades with current criteria.
Search criteria on Manage My Team-page - Doesn't work for me. I get hits from my saved Search Nr.1 on TL-page, but get no hits on Manage My Team-page. I am a supporter.
Show current players on TL on Bids - Show listed players even if the don't have a bid yet.
Star status - Present on Playerpage how (aprox.) popular he is with the fans, in number of stars, or present it like a skill.
Franchise Player - Naming a player franchiseplayer, getting perks?! Costs? Who can become franchise player?
Stamina training - Separate Staminatraining from other training, set level of staminatraining separately. Maybe use fixed "levels" of training instead of %. Deduct that ammount of training from the "normal" training.
Personal Instructions - You could stop a player from recieving any training (except stamina and FT) to stop increase of skill and foremost salary.