Last week, we examined a few advanced statistics where the Buffalo Bills have seen a marked difference since last season -- good or bad.

With another game to broaden the sample size, let's give those numbers a refresh, starting with the offense:

Stat: Average yards per pass attempt

2013: 6.46 (28th)

2014, through Week 1: 7.86 (10th)

2014, through Week 2: 7.81 (9th)

Analysis: This held steady after another game. From a statistical standpoint, this has been one of the more striking differences for the Bills' offense this season. While the Bills have limited EJ Manuel's pass attempts -- he has the second-fewest in the NFL through two weeks -- that doesn't explain this stat. Instead, it points to better accuracy. Manuel has completed over 66 percent of his passes compared to 59 percent last season. Minimizing his incompletions (and interceptions) will help drive the average yardage per attempt up.

Stat: Average time in pocket

2013: 2.34 seconds (18th)

2014, through Week 1: 2.52 seconds (7th)

2014, through Week 2: 2.29 seconds (23rd)

Analysis: This was a steep drop but not necessarily bad news. Consider that the Denver Broncos rank 32nd with an average of 1.88 seconds. Peyton Manning gets rid of the ball as quickly as anyone and is often lined up in the shotgun, so the lower time isn't indicative of a lack of pass protection. Likewise, Manuel was lined up in the shotgun for 36 of the offense's plays Sunday and was getting rid of the ball quickly. The Bills' offensive line ranked ninth in the NFL in Week 2 by controlling the line of scrimmage on 53.4 percent of pass plays. The Dolphins' defensive line ranked 24th with a 46.6 percent control rate.