MakMan44 said:
I disagree.
Salty is not a good back up catcher, because his defense is iffy at best and that's what he'd be right now.
I suppose if he doesn't get traded, passes through waivers and would report to AAA, sure, why not?
No matter how you term his defense I have a hard time buying that the delta between he and Sandy Leon defensively wins over even the potential offensive delta should Salty revert to 2011-2013 Salty with the bat upon returning to Boston. For the roughly 60 games they need to spell Hanigan you're talking less than a win of defense.
For a quick back of the napkin test Salty, by DRS, has been -31 runs over his career for 5310 innings, so -0.0525 per game. Hanigan is +14 over 4331 innings, so +0.0291. This assumes Leon is every bit the defender Hanigan is. So over the course of 60 or so games in relief of Hanigan Salty would be -3.15 runs to Hanigan's +1.74 runs, for a delta of 4.89 runs. The usual runs to wins ratio is 10:1, so we're talking a shade under half a win. Now if we use Sany Leon's nicest projection (Steamer, -4.1 offensive runs over 102 ABs for a -0.040 per AB rate) versus Salty's worst (also Steamer, -4.4 over 294 ABs for a -0.0149 per AB rate), figure 4.5 ABs per game and do that over 60 games we have -10.85 runs for Sandy's offense and -4.023 runs from Salty. So just over half a win.
The most optimistic projection for Sandy and assuming his defense is equal to Hanigan's career up to this point still gives a slight edge to Salty if he posts a .216/.297/.369 slash, the worst of any projection and basically comparable to his last season with the Marlins.
This also ignores that Salty was .706 OPS (98 wRC+) last year against RHP (as a LHB) and .600 OPS (67 wRC+) against LHP (as a RHB). A slightly weaker split than his career average. So he could be used more selectively against RHP to get an extra LHB in the lineup, further increasing his offensive value.
Again, I'm not even a Salty fan, but Sandy Leon isn't worth hording. Salty is almost definitely a better overall player who would likely look forward to coming here and since a decent chunk of the 2013 club is still around likely fit just fine in the clubhouse. If he finds his bat on the trip back north it could turn into a big net positive for this club with him as an extra LH bat off the bench.