How come you can't give a player a short term deal say for 4 months? I'm not taking about loan deal say someone signing an 34-35 year old that can improve your team short-term without having to offer him a 1-2 year deal Or a free transfer that's done ok on trial and you want to know if they're going to be any good without giving them a long term deal and getting stuck with them if they not good enough.