Speaking of the Steelers and Roethlisberger's health. Because of his style of play and Bruce Arians' offense, Roethlisberger took a beating. The Steelers were a Super Bowl team, but Ben was sacked over 200 times in four years. Even though they were winning, they understood their QB could not last under the constant hits and made protecting their QB a priority. They didn't renew Arians contract. Hired Haley as OC to incorporate shorter, quicker passes, while still allowing Ben to take his shots downfield. They constantly reminded him to get rid of the ball. They also spent their first round picks in 2010 and 2012 on their starting center and guard. They even got lucking picking Antonio Brown in the sixth round.
The sacks and pressures were reduced significantly. However, the inexperienced OL was still a problem. When the Titans fired Mike Munchak, they aggressively pursued and hired him. Ironically, Munchak turned down the Texans to join the Steelers. In 2017, the Steelers have 3 OL in the Pro Bowl. Among the Pro Bowlers is Alejandro Villanueva who was on the Eagles' 2014 practice squad. Munchak is one of the greatest OL coaches in NFL history and you can see his influence on their OL.
There are a couple of lessons in the Steelers' approach. Just because you're winning, doesn't mean you cannot improve your team. You protect your QB at all cost. If it means firing a successful OC, you do it. If it means spending money on experienced veteran coaching, you do it. I have no doubt that XSF would be a better football player under Munchak. I don't know how they let Munchak get away. He should have been the Texans' OL coach.
Another thing from the Steelers' approach. The owner, GM and HC had the same vision on how best to protect Roethlisberger and what offensive changes they needed. No petty power struggles or gossiping to friendly media personalities. The priority was protecting their franchise QB and winning games. I wish the Texans would do the same. IMHO, O'Brien and Smith have failed McNair and the fans. You cannot separate the two.