Pretty sure most 3rd/4th line players would play a lot better on a line with Gagne and Briere, rather than on a teams 3rd and 4th lines. I don't regret letting Leino go whatsoever. Put Drew Miller on a line with Gagne and Briere and I guarantee his production goes way up.
Yeah, I would imagine Miller would do better than Leino is if he were given the chance. Any reasonably talented scorer could score with two start linemates. Especially since they were two assists.