I wouldn't say Tennessee's 2016 DB recruiting class is the best in school history, but it's right up there near the top.
This year's class includes 3 Rivals100, 4-Star prospects in Tyler Byrd (#75), Marquill Osborne (#79), & Nigel Warrior (#92). That's a great DB haul.
But Tennessee also signed highly touted DB classes in 2014, 2011, 2009, 2007, & 2002.
UT's 2014 class signed five total 4* DB prospects, but doesn't look impressive at all now as Payne transferred out and McDowell moved to LB. Kelly (#66), Gaulden (#232), and 4* Berry are still on the roster though. 2011 was also very impressive on paper but didn't materialize. The class included 4 total DBs that were rated as 4* prospects, but the two JUCO prospects (Moore & Lanier) didn't play out their entire careers at UT & one DB (Pat Martin) never made it to campus. Coleman (#220) finished his career at Tennessee but never was an elite player, IMO.
The 2009 class included one 5-Star & three 4-Star prospects. The crown jewel was 5-Star Safety & #17 overall player Janzen Jackson. Jackson was an All-Conference type player in his first two years on campus as a starter, but was ultimately dismissed from the team. Darren Myles Jr. (#133) was kicked off before producing anything at UT. Eric Gordon was a solid player at UT & Teague alternated between DB & WR during his career.
The 2007 class signed #3 overall prospect & 5* Eric Berry along with 5* JUCO Vinson, 4* JUCO Willingham, & 4* JUCO McKenzie. Vinson never materialized & Eric Berry was the only player that made a real difference (huge impact).
Then finally the 2002 DB class at Tennessee included #65 overall recruit Jason Allen, #83 overall recruit Jonathan Wade, & 4* JUCO Gibril Wilson.
There have been several DB hauls signed by UT that has been as good as the 2016 class on paper, but most all didn't materialize. I think the 2002 DB class was the best signed by Tennessee, IMO. Allen, Wade, & Wilson were all All-Conference players at UT & played long careers in the NFL.
Hopefully the 2016 DB class resembles the 2002 class more so than the 2011, 2009, or 2007 classes.