Interesting post, and it provides for all of us at .net to give our view on things.
I think you could look at this a couple of ways.
I'll start off first with the unconventional option which is CB is the greatest need of this team. You might be thinking "Srsly, dude we have Sherm/ LOB." Yes, but I saw teams start to score a little more often against us with Simon playing CB opposite of Sherman, most notably in the playoffs/superb owl. Because they won't/can't test Sherman it makes the other side of the field incredibly crucial. Behind Lane, the depth drops off considerably which made injuries to this part of the team huge in the superb owl and ultimately imo resulted in our downfall. I'm one of Maxwell's biggest fans, I think he's a top five corner in this league and if not that at worst a top 10. His and Sherman's coverage skills have bridged the gap for up and comers who aren't there yet, such as Simon.
On the other side of things I could see DT/line being a bigger issue down the road, not a lot of depth behind starters and having to move players in and out was not as easy with the off-season losses of Red, Clemons and ultimately losing Mebane and Avril in the superb owl.
The biggest point of emphasis should once again be what Pete started with, which was adding depth to a team and bringing in athletes he thinks fit the system. Sort of like a rinse and repeat method.
You could make cases for the TE/WR/OL all fair but a lot of those positions don't require an exact overhaul imo as Pete's shown an uncanny ability to pick talent from the depths of the CFL/Arena leagues.
Chris Matthew's has already shown he has the best hands on the team, and I'm convinced he'll be a big part of the team's nucleus next year.
KR/PR is a special teams thing that a couple of athletes could fix, and I see it farther down on the list as a lesser need.