"Just felt like it was the right thing to do to have these players, take a look at everybody and constantly be in evaluation mode,” he said.
The 25-year-old Rosen was beaten out in camp by Joshua Dobbs to be the backup behind Jacoby Brissett, who is slated to start the Browns’ first 11 games while Watson serves his suspension.
Stefanski reiterated that Dobbs, who had a solid camp and preseason, is Cleveland's No. 2 quarterback.
Rosen was released when the Browns trimmed their roster to 53, but came back after not being claimed on waivers.
“Josh gave us some good reps,” Stefanski said Thursday. "There were some really good moments in those games and some really good moments out here on the (practice) field. He's still learning. This was new to him a few weeks back.
"He has come a long way because he is a very, very smart quarterback, but he's still growing.”
Before bringing back Rosen, the Browns claimed Kellen Mond on waivers from the Minnesota Vikings on Wednesday. The second-year QB couldn’t lock up the No. 2 job this summer and was released Tuesday.
He practiced for the first time with the Browns on Thursday before players began a long holiday weekend.
“I was able to shake his hand,” Stefanski said. "He got here in time to be in meetings. It's like anything else, when you get a player at any position, it is time to kind of jump in the playbook and start to learn it as quickly as they can.”
Cleveland has completely overturned the quarterback position from a year ago, when Baker Mayfield struggled with a shoulder injury and was eventually traded. Case Keenum, Mayfield's backup who started two games in 2021, was dealt to Buffalo. Nick Mullens, who made one start, is now in Minnesota.
The 25-year-old Rosen is with his fourth team in four years since the former UCLA standout was drafted by Arizona in 2018. He's 3-13 as a starter.
Defensive end Isaac Rochell also was signed to Cleveland's practice squad. He had been released to make room on the roster for Mond.
NOTES: All-Pro DE Myles Garrett was excused from practice for personal reasons. ... Rookie DT Perrion Winfrey was out sick.
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