Agree 100%.
I'd be fine with a Samuel or Campbell in the 2nd but I feel like going CB there would be a bit of a reach with better value available at safety (Grant/Holland or Moehrig as the unlikely dream), DT (Barmore or Onwuzurike) or even an edge rusher in Ojulari, Ossai or Basham.
There seems to be a pretty large group of CB's remaining: Samuel, Campbell, Melifonwu, Joseph, Robinson, and Adebo, and none of them truly stand out to me over the rest to where I'd want to spend 44 on one over potentially a 3rd on one of the others.
I'd feel perfectly comfortable going into next season with Diggs, Brown, Lewis, and a guy like Robinson or Adebo, plus the rest of the depth guys we currently have.