I liked Bess, thought he was a good 3rd option receiver. Pity you couldn't keep him.
Here's my QB rankings in relation to where Tannehill would fall.
1. Aaron Rodgers
2. Tom Brady
3. Peyton Manning
4. Drew Brees
5. Matt Ryan
6. Eli Manning
7. Ben Roeslisberger
8. Joe Flacco
9. Robert Griffin III
10. Russell Wilson
11. Andrew Luck
12. Matt Schuab
13. Colin Kaepernick
14. Jay Cutler
15. Matthew Stafford
16. Phillip Rivers
17. Cam Newton
18. Tony Romo
19. Andy Dalton
20. Josh Freeman
21. Alex Smith
22. Sam Bradford
23. Carson Palmer
24. Michael Vick
25. Mark Sanchez
26. Ryan Tannehill
27. Jake Locker
28. Christian Ponder
29. Kevin Kolb
30. Chad Henne
31. Matt Flynn
32. Brandon Weeden
So yeah 26th best in the league at this point IMO. Has the potential to jump into the late-mid teens this season, but i don't see it happening that quick.