Since there is an ongoing discussion on this board regarding the Bills' penalties, I tried to collect some fact:
Penalty yards on offense:
227 (rank 15; however the Bills have just 3 games)
http://www.nfl.com/stats/teamsort/NFL/OFF-...=14&_1:col_1=14
Penalty yards on defence:
223 (rank 15; ; however the Bills have just 3 games)
http://www.nfl.com/stats/teamsort/NFL/DEF-...=14&_1:col_2=14
Adding both categories and calculating total penalties per game, we get:
team def. off. games total pen. per game
New York (A) 123 64 3 62.33333333
Seattle 123 123 3 82
San Diego 155 206 4 90.25
Indianapolis 238 137 4 93.75
Cincinnati 237 139 4 94
Philadelphia 175 202 4 94.25
Tampa Bay 206 202 4 102
Miami 212 203 4 103.75
Washington 200 218 4 104.5
St. Louis 165 258 4 105.75
Tennessee 220 207 4 106.75
Oakland 156 276 4 108
Jacksonville 217 250 4 116.75
New York (N) 252 215 4 116.75
Denver 313 167 4 120
San Francisco 220 262 4 120.5
Arizona 253 233 4 121.5
New England 157 211 3 122.6666667
Green Bay 220 283 4 125.75
Cleveland 283 227 4 127.5
Kansas City 200 317 4 129.25
Baltimore 224 294 4 129.5
Chicago 273 247 4 130
Pittsburgh 233 290 4 130.75
Houston 287 242 4 132.25
Atlanta 289 244 4 133.25
Detroit 223 184 3 135.6666667
Minnesota 245 180 3 141.6666667
Dallas 158 279 3 145.6666667
Buffalo 223 227 3 150
New Orleans 320 283 4 150.75
Carolina 271 201 3 157.3333333
In other words, the Bills are the third worst team.