When should you draft him? In the middle rounds.
Why should you draft him? The Lions have the best receiver in football in Calvin Johnson. However, that doesn't mean Matthew Stafford can't throw the ball to his other receivers.
As a rookie, Young caught 48 passes for 607 yards and six touchdowns. The athletic receiver knows how to get open and make plays after catching the ball, as we should know from watching him play in Detroit and at Boise State.
In addition to Johnson, Brandon Pettigrew and Nate Burleson caught more passes than Young in 2011. However, Stafford, who threw for over 5,000 yards last year, will target Young more. He will catch more passes and score more touchdowns in 2012.
Detroit has depth at running back, but they don't have a star ball-carrier. That means the Lions will throw the ball a lot, and Young will have chances to catch passes a lot. Expect Young's stats to be a lot better in 2012, and expect him to catch more passes than every Lions' receiver other than Johnson.
Once Young makes a catch, he can do a lot with the ball. Young averaged almost 13 yards per catch in 2011, and in his final year at Boise State, he averaged over 17 yards per catch. Once his receptions go up, so will everything else.
And that will make Young a great pickup in your draft.