By Matt Hladik The NFL offseason continues to roll on, and Baker Mayfield’s future remains in limbo. Mayfield is still a member of the Cleveland Browns, but the team doesn’t need him after trading for Deshaun Watson. The trade market for Mayfield has not materialized, leading some to speculate he might have to be a backup somewhere, either with Cleveland or another team. It didn’t have to be this way, says former Browns star Joe Thomas. On his podcast with ex-Cleveland wide receiver Andrew Hawkins, Thomas explained his theory that Mayfield overplayed his hand and cost himself a starting job wi…