Last year Poles signed Dayo for an expensive price and he got hurt. I doubt he wants to pay good money for people with injury history. Crosby just had his 8th knee surgery this past year. Hendrickson has missed time over injuries the last two years.
The draft is the key going forward that upgrades both our lines. Now if they find some veterans that may want to play here for a winner and give us team favorably contracts that remains to be seen.
The other way to add is trade but I don't see us giving up high drafts if we trade for someone and trading expensive players isn't as easy as people make it out to be.
Teams have to have Cap space, the need, and usually rebuilding teams want draft picks in return. So more likely a contender with a specific need but will try to got that thru the draft first. After the draft will be when they look for those additions.