I think the JET is playing just fine for us...good shooting percentages, fitting in to the offense, and learning/improving on defense.
Ray might be the best shooter of all-time....but Terry has been very good - and probably better on defensive rotations and ball-handling than Ray would have been. FWIW, my recollection is that Danny wanted both JET and Ray...JET was signed right away, before Ray decided to go...Terry the back-up 1, Ray the 2....behind Rondo/Bradley....imagine that.