It Should work like that, probably did once before agents got involvedIf Mina is going to Turkey, they aren't paying him anywhere near what he gets here. Why can't we pay him what they are and get him to stay? And I know it's not "that" easy but I like Mina and he's actually pretty good when he plays. AND he's a genuine snide.
Just a weird move for him. Give him a base matching Besiktas and then an "incentive" bonus when he plays that dwarfs them.
And, yes, I know it doesn't work this way. If he could stay fit he's one of the few I'd be sad to see leave.