Chris Wesseling from NFL.com put together a solid list of the deepest position groups in the NFL. I think the Titans secondary definitely deserved to be on the list. Kevin Byard is the best there is at safety, Kenny Vaccaro is an incredible complement to him, Logan Ryan was one of the best slot CBs in football last year, Malcolm Butler was one of the best CBs in football for more than half of last year, and Adoree Jackson flashes quite a bit.
Bill Barnwell ranks the Titans offensive arsenals as 21st in the league, which is fine because 2 of the biggest factors, Corey Davis and Mariota are not sure things yet. However it is curious to see that he ranked the Titans 7 spots higher in 2018, where the Titans top 3 WR were Davis, Matthews, and Sharpe and not Davis, Humphries, and Brown.