First I was going to say "probably, it depends who"
Then I looked up the three guys AA was presumably interested in last off season. And realized that NONE of Garza, Jimenez or Santana would have been an upgrade over Happ, at least to this point, according to WAR.
Happ's 0.9 WAR is on par with Santana's, and the other 2 have provided neutral or negative wins for their teams.