What else can they do though? Crosby is very likely out until playoffs now, so there's no time for him to form chemistry with new linemates, but the same applies to using temporary lines - it'll mean new line combos for playoffs, and chemistry will have to be formed again.
I mean, even going with Kunitz-Malkin-Neal isn't a sure thing because Malkin hasn't been anywhere close to the same player he was last season.
Well I don't think Malkin has been bad at all. He's dealt with injuries and had a revolving door of left wingers all year. That certainly has impacted his productivity. So moving Kunitz back with him would bring back a proven combo that we know will work if given time.
My opinion is that the best top 6 in the playoffs for this team is either:
Duper-Sid-Iggy
Kunitz-Malkin-Neal
or
Kunitz-Sid-Iggy
Morrow-Malkin-Neal with Duper on the 3rd line RW
Both of these options keep Sid with a speedy/gritty winger that will get the puck and open up space for Sid and Iggy to work. From the 3 games I've seen, Iggy has been much more of a triggerman than the 1st guy on the forecheck. He can definitely do far more than just shoot, but I think his skills are maximized with Sid since Geno already has Neal for the triggerman spot. Plus, Neal is a proven RW here and Iggy has been a RW his entire career. Why move guys from their proven positions?
That leaves the bottom 6 as either:
Morrow-Sutter-Cooke
Glass-Jokinen-Adams/Kennedy
or
Jokinen-Sutter-Dupuis
Cooke-Vitale-Adams
There are some moving parts here, but that 2nd bottom 6 is freakin awesome. Jokinen-Sutter-Dupuis could be a pretty good offensive line. Cooke-Vitale-Adams would be such a nasty 4th line.
There are so many options. I just wish Dan would realize the obvious: Iggy was mean for Sid