Being the 5th OF'er in an OF with Beni-Betts-Bradley means just about zero playing time in LF. Young is more than capable playing every inning that an OF'er needs a rest or is out hurt for a short time. Most teams like to have a player able to play the OF in the 5th OF'er role. Holt has been that player, but our OF was much more unstable, which meant he played OF often (too much, in my opinion).
If we traded Holt (not giving him away, I might add), we'd have Hernandez as the utility IF'er, Young as the utility OF/DH, Shaw as the utility corner IF'er or starting 3Bman, if Pablo flops again, which would leave the 4th sub role to: Swihart, Marrero, Dubon, Moncada or Travis. There's several reasons for not wanting anyone on this list, except Swihart, but I seriously doubt we trade Holt, so this whole point is likely moot.
We won't carry 3 catchers, but there are some advantages to doing so, especially if Hernandez shows he's a better middle IF depth choice than Holt.