why can i offer non-contracts at some clubs but not at others?

[unbelievablejeff]

hi guys. was wondering why, as manager of Villa, i could offer non-contracts or get staff on a part-time basis but i cannot at Everton. these are new saves so its not a patch issue. is it something to do with club policy? can it be changed? cheers.

 

[unbelievablejeff]

ill provide more info. basically, at everton,where it says "contract type", the dropdown list consists of 1 option "full-time". at villa, there is also "part-time" and "non-contract". has no1 else spotted this?