Yes but you need balance too. You can't trade away too many picks or you won't hit on enough talent no matter who you pick. Also certain positions are much easier to fill from free agency or udfa than others. Its not so uncommon that an udfa turns into a star RB but its very uncommon at QB. You can get a running back in free agency also who can be quite good and at a discount. Backup QBs in free agency are a dime a dozen so drafting a QB who doesn't have an elite starter ceiling is kind of pointless. You can even find edge rushers cheap in free agency when they have proven they have some inconsistency, like Clowney, much better than you tend to be able to find on oline. It seems really hard to find useful affordable oline in free agency or from UDFA so I think its a key position to invest a combination or 1st and middle round picks to have youth and depth. Most of the best tight ends of all time are middle round picks so ever spending a 1st rounder there is stupid, its only really worked about once a decade across the entire NFL, if that. In general I think the 1st round you go QB, OT, CB, WR, LB, DL because those are high value positions you can sometimes predict. Mid rounds you can continue to add any position but focus on a lot of oline where its hard to get depth, and only draft QBs you feel could start one day. Don't waste mid round picks on kickers, punters, or short backup QBs to sit behind your starter who you financially can't move on from for 5 years. If your team has weaknesses at OG, S, TE, or RB those are prime positions to draft in the mid rounds, so trade back and acquire extra mid round picks.