San Diego Chargers Draft: Trade up/down, stay put?

Trading up:
Brandon Scherff : Offensive Tackle – Iowa – 6’5″, 320 lbs
Jan 1, 2014; Tampa, Fl, USA; Iowa Hawkeyes offensive linesman Brandon Scherff (68) blocks against the LSU Tigers during the first half at Raymond James Stadium. Mandatory Credit: Kim Klement-USA TODAY Sports
Scherff is commonly viewed as the most NFL ready tackle in the draft. Although still perfecting his pass protection, he is well rounded in both run blocking and passing situations. His lateral ability and change of direction quickness allows him to pickup blitz packages efficiently and also hold his leverage over a speedy defensive end. He is pegged currently as a top 5-10 pick.
Danny Shelton : Defensive Tackle – Washington – 6’2″, 343 lbs
Jan 2, 2015; Tempe, AZ, USA; Washington Huskies defensive lineman Danny Shelton (55) against the Oklahoma State Cowboys in the 2015 Cactus Bowl at Sun Devil Stadium. Oklahoma State defeated Washington 30-22. Mandatory Credit: Mark J. Rebilas-USA TODAY Sports
Danny Shelton is widely viewed as the best pure nose tackle prospect in the draft. He draws comparisons to New England trench monster Vince Wilfork. Shelton has projections to be drafted anywhere from 6th-16th overall. Barring a combine setback or a draft day slide, the Chargers would have to trade up to get this defensive force. With 9 sacks and 16.5 tackles for loss in 2014, Shelton will be an immediate impact player at the next level.
What the Chargers would have to give up:
If trading for picks 6-10 the Chargers would have to forfeit at least a 3rd-4th rounder.
If trading for picks 11-16 they’d most likely forfeit a 5th rounder.