Wallach was acquired in the Mat Latos trade with Anthony DeSclafani in 2015. He is the son of former Major Leaguer Tim Wallach, so the bloodline is clearly there. Wallach was a fifth round pick by the Marlins in 2013 out of Cal State Fullerton. After being drafted, Wallach discovered some power, which is always nice to see in a catcher. He is also a hitter that does not strike out a lot, and gets on base via the walk. However, since the trade, Wallach hit a respectable .246 in High-A, but got off to a slow start in Double-A in 2016. He was hitting south of the Mendoza line through May at the level.