Ben Roethlisberger has made some good throws this season, but he has struggled with his consistency. He has had good games and bad games, but even in his better games his play has been erratic.
In three games against the Buccaneers, Chiefs, and Falcons, Roethlisberger threw for nine touchdowns and 2 interceptions. In each of those games he completed more than 65% of his passes in each (including completing 78% against the Buccaneers) and had a passer rating over 100.
Contrast that with the other two games between which he threw 2 touchdowns and 4 interceptions.