Don't know if this was mentioned during the broadcasts or the road trip but Hahn was with the club for the entire 10 games getting a first hand look at what he has.
I think that's actually good since Kenny especially in the last few years didn't go on the road much.
Having Hahn around enables him to talk directly with his on field staff as well as talk directly with scouts. (And there were a bunch watching the Sox already on this trip - especially Floyd - although I can't understand why anybody would want him. Maybe the scouts are being sent by other teams who already have an idea the Sox could be big sellers by mid June...)