Mel Kiper Jr. breaks down the top three picks in his latest NFL mock draft and why both the Chargers and Titans could select an offensive tackle. (1:56)

Free agency doesn't change draft evaluations, only the occasional need. And I don't think it shifts needs dramatically, because it's the rare team that will tell you it was able to truly fix problems on the free-agency market. In the draft, you want core players you expect to be with the organization for years to come. You don't see these guys as fixes to immediate problems. Teams use rookies, but they don't want to have to depend on them. Free agents, on the other hand, simply aren't expected to be around for a long time.

With free agency the hot topic during the next week, here's an updated mock, and a note on how free agency could change the pick.

A player with an asterisk next to his name has a year of eligibility remaining. Two asterisks implies two years.

*Laremy Tunsil, OT, Ole Miss

The top left tackle in the draft goes to a team where offensive line help is a must. I'm certain the Titans will continue to shop this pick, but it could be difficult to get a good offer.

Free-agency effect: As usual, free agency isn't exactly flush with offensive tackle help. The Titans can shop elsewhere knowing they have a tackle option here. While it's not a free-agency move, the addition of DeMarco Murray is another reminder the O-line should be a priority.

Carson Wentz, QB, North Dakota State

I wouldn't rule out Cleveland taking a non-quarterback here and then getting one with the No. 32 pick, but Wentz would make sense here as a super physical talent whom new coach Hue Jackson can develop.

Free-agency effect: Is there a QB in free agency clearly better than a healthy Josh McCown, one they want to pay big dollars for? Right now, I doubt the Browns make a splash there.

*Ronnie Stanley, OT, Notre Dame

The offensive line has been a major problem area going on a few years, and Stanley can be plugged in immediately. The Chargers need D-line help as well, but the draft is much deeper at that position.

Free-agency effect: If the Chargers find O-line help in free agency, it could shift the thinking here if they have players graded similarly.