Omar is not 100% wrong. The Chase picked worked out, nobody can say they should have gone Sewell there at this point, but the line does still have issues. Whether some sacks are Burrow's fault or not, he still gets hit way too much.
I think Carman is 100% part of the Bengals future on the line, but conditioning and weight issues are a concern. Given he is on a rookie contract for a 2nd rounder, he has a minimum of 2 years to make an impact or his stay will be short.
The draft and free agency has to include OL as targets. Some pretty good OL hitting the free agent market. Not sure of the status of their free agency (can they be tagged) but a number of guys I've seen that could step in and be immediate, significant upgrades are Teron Armstead, Orlando Brown and Brandon Scherff. Plenty of cap space to bring some guys in, this assuming they don't resign Reiff.
Couple a big free agent get with a guy like Tyler Linderbaum, Darrian Kenard or the tackle from CMU (his name escapes me, Raimann maybe) and the line gets much better before April is over.