Seems to me he's going w/ Jenks first in most days and falling back on Hermanson if Jenks is a no go or can't finish the game. He's been very willing to use Jenks in the 7th or 8th and then stretching him out as much as possible. Something similar can be said for Politte although Politte hasn't actually gotten a save in the past month yet. I suspect he's using Jenks the way he was hoping to use Politte last month before Jenks proved to be good enough to close.
I say this based on my observations as an owner of Politte (until recently) and Jenks (recently/now) while I also keep tabs on my league's leader who owns Hermanson.
And oh, holds (and blow saves and losses) count in that league.