Quoting: DirtyDangles
Care to elaborate? Glass was the same draft year as Patrick and can't even crack the Vegas lineup. Keller isn't anything special, he sits at around .61p/g over the last 3 seasons.
Glass is the same draft year but there's a difference between not being able to crack the lineup and being patient with a prospect. It's not like he's Logan Brown. I'm pretty sure the hope is that Glass enters the lineup full time next year and becomes either the 1 or 2C. Maybe he doesn't get there, but he still has more upside than Patrick right now.
Keller is only 22. Expecting him to come out of the gate scoring 70+ points is, in my opinion, unreasonable. Is he not playing up to his contract? Absolutely, but that's more on the Coyotes, and lets not forget a lot of young players take a bit longer to reach their peak/potential. I think Arizona is crazy to undervalue him unless he goes 2-3 more years being mediocre. On the return side, as much as I hate to say it, Lindblom's ceiling is probably the third line on a good team, and Myers might be top-4, but I still think this is lopsided.
I also think you're overrating Dumba's value. He's great, and I know top-4 offensive D are a valuable commodity, but Konecny is a potential consistent almost-point-per-game player, and when you add that and a first, especially for Dumba's slightly inflated contract, that too is lopsided.