Yards are a good indicator, but let's look at Points vs Time of Possession (rounded to nearest minute).
Game 1 (Dolphins): 10 points, 23 minutes with the ball (.43 points per minute of TOP)
Game 2 (Packers): 7 points, 29 minutes (.24 points per minute)
Game 3 (Pats*): 30 points, 28 minutes (1.07 points per minute)
Game 4 (Jets): 14 points, 20 minutes (.7 points per minute)
Game 5 (Jags): 26 points, 26 minutes (1 point per minute)
Yes you should consider the quality of opposing defense, the 1 KR TD, and the smattering of garbage-time points... But it is true that the offense is doing more with the time it has the ball, in recent weeks without Trent. The most pressing problem is that the defense is not getting stops, not getting the offense the ball. The Jags went the whole game without punting in week 5.