I watched the coaches film of our game against the Bengals last year, keeping a eye on
William Jackson III on one side and Darby on the other.
I think the upgrade is clear and obvious. W
J3 seems to be a very good and physical corner. Played press coverage against Terry most of the game, and was really efficient doing so. Darby (who I thought had a good season with us last year) was playing off coverage and had some suspect footwork at times.
A couple very good plays by WJ3 vs Terry:
On top, no comment needed :
Bottom, WJ3 is supposed to have inside help by the safety (I'm guessing some sort of Cover 3) who bites on the post route by Cam Sims, and despite not having inside help he has air tight coverage, Terry just makes an incredible catch: