this strikes me as mostly a lateral trade with a couple of minor ancillary benefits:
1) it allows the new regime to put their full faith in the development of ben mclemore, which has been their inclination since draft day 2013
2) it breaks up thornton's oversized contract into more manageable expirings that can potentially be moved next season
so, not a lot to write home about, particularly given mclemore's slow development. i mean, it's not as if the kings are making room for a young player who's breaking out mid-season, and it's not as if mclemore is going to receive more opportunities to shoot than thornton did, not while isaiah thomas remains a member of the starting lineup, that is. but it's also not as if the kings didn't have designs on eventually giving the starting SG spot [back] to mclemore, anyway...
we knew marcus thornton had no long-term future here, and we knew that the kings weren't likely to get much for him. it was just a matter of when and what spare parts they received in return. evans brings some toughness and rebounding off the bench. terry brings an aging veteran presence who can, i dunno, bring a bit of winning experience to the proceedings...
clearly this is a move that can't be judged on its face in the immediate sense; it's dependent upon other factors and potential follow-up moves. will mclemore develop into a long-term starting SG? will the kings be able to offload anybody in their glut of rotation bigs? how does the front office really view isaiah thomas? deadline's tomorrow. we'll see if any questions get answered between now and then...