Obviously it depends on the contract, but I see no particular reason why the Twins should be looking to move on from Cruz. Great hitter and great clubhouse presence. I would move on from Rosario, and sign somebody like Kevin Pillar (who can not only come off the bench to steal a base, but also serve as a defensive replacement in late innings and serve as Buxton insurance) to man LF until a prospect is ready. If the prospect comes up, you've got one of the best fourth outfielders in the league, and if he doesn't you have a perfectly serviceable LF'er, probably for cheaper then Rosario.