If Happ were on the open market, would you pay him $5M? If not, why even offer him arbitration? He has had plenty of time to figure things out, and he is terrible. Rafael Ortega is playing over his head for sure, but I would much rather let him fill the spot for the next year, whether that be as a 4th outfielder or as a placeholder starter. Sure I definitely would. Coming into this season he had a career .825 OPS in 1262 PA. Last year he had the 24th highest fWAR for a position player in baseball (yes SSS but still). $5m is worth trying to figure out what has gone wrong this season and whether he can go back to some semblance of the production he had in his previous 4 seasons. I'll trust the 1200 PA over the 300 PA this year, even if that 300 PA is the most recent data point. Yeah, if this were a KB or someone making $15M+ through arb you'd probably cut him, but Happ at $5M is nothing. Especially for a team that's going to be competing but also just trying to sort through guys, you absolutely should buy that $5M lottery ticket. Hell, at this time last year he was an MVP candidate (yes shortened season blah blah blah) so it's not like you have to turn the clock back that far.