He didn't really pick up a traditional save (close out the ninth). He pitched 3 innings of relief. Pitching 3 effective innings is one condition for a save:
A pitcher can earn a save by completing ALL three of the following items:
1. Finishes the game won by his team.
2. Does not receive the win.
3. Meets one of the following three items:
a: Enters the game with a lead of no more than three runs and pitches at least one inning.
b: Enters the game with the tying run either on base, at bat, or on deck.
c: Pitches effectively for at least three innings.
That'll probably be the last save that he gets, because all that they are doing with him right now is getting him to work long relief outings to build up his stamina and pitch count so he can go into the starting rotation. As a starter, he has a career ERA of over 5.00, so you are not losing anything from dropping him.
He went in to pitch a long relief outing, with the score like 8-1 in the 6th. When you end a game pitching three innings of relief with the lead and don't give it up, it is a save no matter what the score is. They are just gradually building up his strength to become a starter.
And, especially in 4x4 and 5x5 leagues, closers are not overrated. It is a terrible strategy to just forget about saves in a roto league, because that leaves you with alot of ground to make up in other categories and little room for error. An injury or two or bust will doom your season. Closers are less important in head to head leagues though, because you just have to win the majority of the categories each week.