The top end of any trade possibility for Clemens would be the Eduardo Esobar trade that brought back Jhoan Duran from the Diamondbacks. Escobar was having a career year with the Twins prior to the trade, similar to what Clemens is doing now. The baseball reference comparison, shown below, still tracks 2026 Clemens trending towards half the WAR that Escobar did in 2017 and Escobar had similar positional flexibility as Clemens. We got to see what Duran turned into. We need to remember at the time that Duran was a high upside guy but wild with his power stuff. He was only the 16th rated prospect in the Diamondbacks organization at the time of the trade. If he was traded, that comp is likely the very top end of what you could expect in a return, a prospect no higher than 15th in an organization, depending on the quality of the farm system.
There is still a lot of season to be played to determine whether Clemens will have a job at the end of the season. In a perfect world, Lewis and Keaschall nail down the right side of the infield so Clemens is reduced to more of a platoon role. Same would be said for the outfield if one of Jenkins, E-Rod, or Roden come off the IL and tear the ball off and is called up to the ML club thus reducing another path for playing time for Clemens by the end of the season. Everyone wants the youth movement. If you embrace the youth movement, then trading Clemens during a career year is the smart thing to do.