I'm sure the Angels know all of this. It came down to Kohn vs. Jepsen...and Kohn can't throw a strike. Jepsen has good peripherals this year...Kohn doesn't. Kohn is much more prone to blowing up than Jepsen is because of his inability to throw a strike.
So Jepsen walks less, strikes out more, and allows far fewer baserunners so far this year.
This was the right decision.
Can't believe I just defended Kevin Jepsen...but he hasn't been a problem this year. Last year he was awful