Ben Roethlisberger missed all but two games of the 2019 campaign before ending his season on injured reserve due to an elbow injury.
"We're hopeful he can make a complete recovery (from surgery on his right elbow). So far, he's on course for that," Colbert said, via Bob Labriola of the team's official website.
NFL Network Insider Ian Rapoport reported Thursday on NFL NOW that even with the optimism about Roethlisberger's situation, the team could take it slow with rehab this summer.
"Sounds like his rehab is going well," Rapoport said. "And yes, surgery on his elbow to reattach some tendons was major. It was serious. I wouldn't be surprised if Ben takes it extremely slow during the spring. But from everything that I have heard, he's going to be their quarterback next year. And it does seem like they're open to the possibility of that continuing on maybe into 2021 as well."
"We don't think Ben is near (where Rivers and Manning are) yet. We don't think he's at the end of the road," he said.
The Steelers are putting all their eggs in the Roethlisberger basket for 2020, hoping he stays healthy enough so that Colbert's team doesn't waste a great defense yet again. So far, the outlook is optimistic in Pittsburgh.