Brown, Carter and Quick aren't long for this team while Eichel would be. Brown and Carter have one more year after the current one. Kovy's cap hit is gone after this year. All of the 2019 and '20 draft pick ECLs are sliding. Eichel is only 24 and locked up.
It would cost prospects we all like but Blake is not doing his job if he isn't inquiring.
His age does fit, IMO. This rebuild isn't going to take another five years. He'd be the #1C on this team for two more years after Kopitar's contract ends and he'd still be under 30. He could help lower Kopitar's minutes right now and extend Anze's career. Hell, Anze could go Thornton style and do team-friendly deals at the conclusion of this one if Eichel is here and he likes where the team is at.
We hope that any of these forward prospects are Eichel caliber. One in the hand is worth two in the bush at some point. Maybe that isn't right now but, IMO, some of these prospects will not live up to expectations so the idea of "waiting to see what we have" is also the same as "we keep them if they are good but we'll be cool to trade them if they are disappointing" which, of course, means they aren't as valuable in a trade at that point.