I also think part of it is he has jets. You can clear the ball when parking the bus and he can run and chase it down to kill more clock.I think the addition of Shelton had to do with wanting someone who could win balls in the air on set pieces and clearances.
And you know what, that worked last night, causing Shuttleworth to get a red. Now I know that in the minute it happened in, it didn't end up having that dramatic of an effect, but it is one of the things that Khiry can bring to the table.
That aside, watching his one touch and loss of possession was heartbreaking. I noticed several times other players (I think mostly Pirlo and Villa) getting upset when he either lost immediate possession of a pass, or there was a time or two when he wasn't aggressive enough to take possession of a clearance.