If I had to stick my neck out I might say that Zavaleta, as the more positional, composed defender, may have the better chance in the long term of filling the significant void that will eventually be left by Drew Moor.
But it was only really in the final month of the 2016 season - in the playoffs, in fact - that he really started to look settled. During the disappointing run prior to that, Zavaleta was shaky at best and before the change to a three-man defence many wondered why Greg Vanney was persisting with him over Hagglund.