Looney is very intriguing to me from a defensive stand point as well, those long arms could come in very handy in stifling the opponents' offense, especially on the perimeter.
A lineup below could be one of the longest in the NBA, and that's not an exaggeration:
Gobert - 7'1
Favors - 6'10
Looney - 6'9
Hayward - 6'8
Exum - 6'6
You should see them in the shower....