We'd really prefer just a better pick for Roslovic. That is, unless Alnefelt's development progression is much, much better than his stats seem to indicate at the moment (I confess I know nothing about him beyond that which can be quickly Googled, but what there is doesn't look great).

Tampa just simply doesn’t have the prospects that would be of any value to Columbus and we are so low on picks that I figured we can give you a player that will never see a big role as long as vasy is here but can very sneakily crack a spot in Columbus

The only issue is Columbus has their own sneaky good AHL goalie already in Greaves...who's still currently the reigning GSAx/60 champion of the NHL for goalies to have played at least one game, and is on track to repeat as champion this year.

I'd take the trade, but under the assumption that Tarasov or Merzlikins are gone next season, and Greaves or Alnefelt are in the NHL as the 1B/2nd goalie (with the other in the AHL).