Highly, highly, doubt that would be true. First off, Marchand (10 goals and Eriksson (9) have more goals right now than Vermette, who is playing a non-systems Arizona team. Second, in 10 NHL seasons, the guy has hit 20+ goals only FOUR times. One of those seasons was on the run-and-gun Ottawa Senators of 2007-2008, and the other times it was non-system teams like Columbus (2009/10), and Arizona last year.
Marchand has already scored 20+ goals three times, and has done so in only four NHL seasons.
And in the last 4 seasons, Vermette has tallied 20+ goals only once, including a barn burner of a campaign in 2011/12, when he scored 11 in 82 games (Columbus + Arizona combined).
Another player who's achieved that feat -- 20+ goals only once in four years? Chris Kelly.
And let's not forget to add the Bruins' "discount"; our defensive system will deflate his numbers. By by estimation, we can expect a robust 10-15 goals from Vermette, which Marchand has already achieved at the halfway point and Eriksson, one goal away from achieving, playing most of his time on the third line.
I don't know why we would move important assets to obtain another Chris Kelly, even a 2011 Chris Kelly, and then also overpay him (we will) who will solve none of our problems, and meet none of our needs.
PS: no one has mentioned that Vermette is minus 10 this year (good for 4th worst on the entire Coyotes team). Even Tyler "Voldemort" Seguin, who many assume to be the king of two-way neglect, is a team best plus 5 on the lowly Dallas Stars.