You'd do well to "dress up" his performances in that period to look bad.
Collins has only dropped off a cliff in the final 6 games or so. No point putting Moore in for 2-3 games when he's 100% leaving.
He got dropped, was crap when he came back in for the cup, was going to leave last summer and his contract is up this summer so why would we bother with him?
Norwich A (Feb 3) to the end of the season we're 17th in the table:
But Feb 3 to Apr 6 (Leeds H) we're 9th:
It's just those last 6 games that have cost us...