A Baker needs dough to do his job ... and Joe Haden says that's the case for Tampa Bay's quarterback as well -- 'cause he tells TMZ Sports he thinks Baker Mayfield deserves $25-30 million a year!!
The Buccaneers signal caller tops the list of available free agents this offseason ... and many are expecting the former No. 1 overall pick to get a big payday -- and staying put in Tampa seems like a strong possibility.
Haden -- who spent several seasons with the Cleveland Browns, just like Bake -- is all for Mayfield getting money thrown at him .