Worst case, you have him in the Nance role where you use him in emergency situations. Having Bassitt/Scherzer is a lot more beneficial than Nance/Bruhil and its not even a question.
Let's say there's a massive blow out either way, just use Scherzer to mop up to save all your high leverage arms. Just too many positives to not have him on the roster even in the worst case.