So the Sharks get the 2nd for taking Mantha, and the stalling former 1st round pick prospect (who still has time to break out) + a 3rd round pick for Barabanov.

I could see it happening, but I don't know how the Sharks would evaluate Lapierre since his points don't pop off the page, and he's on the smaller side. The Sharks have a lot prospects with a similar physical profile, but maybe they would go for him as a defensively responsible 3C.

I would do this trade for Chesley instead of Lapierre, and you could keep one of the picks.

2nd, Chesley, and Mantha would be fine with me. I view the two of them pretty similarly in value, Chesley and Lapierre.