Just an FYI, TB o/u is now at 77 games
That's a pretty huge adjustment from the line opener of 72. In any other division, the Rays may have a decent shot of 77 wins. In the AL East, I think their chances are slim to none.
Second *Official* play - UNDER 77 (-115) TB
What have the Rays done in the off season to warrant this adjustment?

I know Baseball Prospectus had an article out there with them going 88-74 this year based on their projections. I just don't get that. When I try to look at these futures, the first thing I look at is pitching staffs, both starting and relief pitching.
The Rays staff at present looks as follows:
1 Scott Kazmir (L) (D.L.)
2 James Shields ®
3 Matt Garza ®
4 Andy Sonnanstine ®
5 Jason Hammel ®
5 Edwin Jackson ®
Kazmir is already out with arm problems which doesn't necessarily bode well for a young pitcher with a lot of innings on his arm, and the player this team wants to be their ace for years to come.
Shields is a mediocre #3-#4 starter. Garza is another nice young pitcher, but very untested. After that, you're looking at a whole bunch of nothing (well, until you look at their minor leagues, Price, McGee Davis....but these guys are not going to be rushed up anytime soon).
Their bullpen is anchored by the likes of Troy, coming out of retirement, Percival and Al, 88 mph heater, Reyes. Dan Wheeler makes a decent setup man (most of the time), but frankly their pitching is severely inferior to every team in this division, save the O's. that means their offense is going to be relied upon to score a lot of runs. Quite a bit of potential in that lineup, but I don't see it leading to much more than 72-73 wins. They remind me a lot of the Astros this year, good offense, no pitching. The AStros have the luxury of playing in the NL Central which is the weakest division in baseball. The Rays have to play in the AL East which is one of the most difficult divisions in baseball. Rays will have to have a lot of things break right, and a lot of players blossom simultaneously for this team to be near .500 this year. Until they can run out there 4 major league quality starters, and a real bullpen, this team is going to have trouble winning a lot of games, imo.