Back to the mock for a second...
OK, in this one there are 3 QB gone in the first round, so the 5-techs we (OK, I) want go a little earlier. Watt goes high, we take Jordan at 17, and Heyward slips to 30. Wilkerson's stock appears to be rising as he's taken at 24, before Heyward. If we don't take Jordan at 17, Heyward possibly slips to 33, as the Jets take Heyward at 30 and would likely take Jordan over him, were Jordan available.
In a related note, we should probably have gone Jordan at 17, then Pouncey at 28 and OLB Justin Houston at 33. Leaving CB as the last of the needs I want them to fill.
In this mock, we could, of course, go Houston at 17 and then Heyward at 28. No info on what happens after round 1, but Houston would be available at 33 in this mock, so that would not be a great move.
Point is, this is the second draft I've seen where one of the 5-tech DE's drops far enough to grab at 28, and possibly even 33. In this scenario, we could justify trading up from 17 (using 60) because we can fill the DE need later.