I’d actually be surprised if it was Hernandez.
Those last pitching spots always go to some Lenny DiNardo type whose borderline talent at best, more for the idea of preserving some depth.
Hernandez has probably been the story of camp, but it’s not just about that. Most pitchers in camp are warming up and working on new pitches and doing other activities that lead to struggling, so the stats are not always so important. What usually is more important is the plan for the pitcher. If the Sox think of Hernandez as a starter - and they may need him as one next season - then they’re going to want him to build up some endurance on AAA or AA this year and to enhance his secondary offerings. Stamina being the key here. Hernandez has never thrown more than 107 IP in a season and has only thrown 6 IP above A ball.
And for all the pitching depth the Sox acquired, the only starters were Erasmo Ramirez and Josh Smith. And Smith sucks. This leaves the Sox with starter depth of Johnson, Velasquez, Ramirez and maybe Sharwyn. (And the forgotten man in Chandler Shepherd, who will continue to be forgotten.). That’s actually not a lot of depth, especially since there are no guarantees about who will be healthy when needed.
The Sox are probably better off letting Hernandez build up some stamina in the minors rather than making him a stopgap pitcher while Pedroia recovers. The 2 or 3 innings he pitches in that time won’t make any difference to anyone.
As for Mejia, why not? He’s the most experienced closer in the entire organization. I’m a bit surprised they’d go to him after a 3 year hiatus, but if he can pick up where he left off, that’s a huge booon for Boston’s bullpen. And if he can’t or he sucks without “help,” he can be quickly cut with no real commitment...