In making his decisions, manager Pete Mackanin would be going with the percentages in using his lefty bats to start against the righty pitcher.
That gives Howard the start at 1st, is the reasoning behind giving Asche a start in left, and pushes Hernandez to 2nd in the order, where as a switch-hitter he brings yet another left-handed hitting option.
The lineup above also gives the nod as the starting catcher to Rupp. That is by no means a given, though he will indeed enter spring training penciled into that role based on his 2015 performance.
However, newcomer J.P. Arencibia should provide a legitimate challenge for both Rupp and longtime catcher Carlos Ruiz, who will be in his final spring with the club. Spring training should decide the backstop starter.