Jeff Bannister talks Daulton Varsho and Catching Starting Pitchers: Zac Gallen, 2-0, 0.95 ERA vs Kyle Hendriks 2-3, 4.38 ERA Lineups: As good as the entire Diamondbacks rotation has been so far, Zac Gallen is emerging as the ace of the staff. He threw 7 shutout innings last time out against the Rockies and has allowed just 3 runs in 28.1 IP while allowing just 16 hits and more importantly walking just 4. Kyle Hendriks has had 3 rough starts in this young season that inflated his ERA, but don’t kid yourself, he’s still an excellent pitcher who is tough…