As you will find out as you progress through the leagues that those free agents become unsellable at the higher levels. You struggle to get rid of any player of any ability if he's older than 27. You can have an defender with heading ability who's 10 ft tall and right on the threshold of the next level (239.8) and he still cant find a club.
This is where and automated option would come in handy to sell for a cut price deal back into the system so both player and club have some hope of progression.