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Paxton can go 5, then cede it to a few innings from Erasmo. 5 days later, Erasmo can start and Paxton can throw 3 innings.
You get both of them all year that way, acclimate them to the majors, keep their pitch counts and inning counts down, and the lefty/righty buzzsaw combination would be lethal.
Other than it requiring 2 ounces of courage to do, what's the problem?
~G