There is no doubt that the Browns are still a worry. Their 6-10 record last year was a product of having an absolute moron for an HC, Baker in a sophomore slump and a team chemistry that will only exist if they don't face adversity. On addressing these issues:
1) Stefanski is an unknown, but it is hard to imagine he can do a worse job than what Kitchens did in 2019.
2) There are 2 kinds of sophomore slumps ... one where a guy has too easy success in his first year, decides he doesn't have to work hard then gets a cold slap in the face and realizes he needs to shape up... or two where a guy get's figured out, can't adjust and can't handle the increased expectations. One turns around and has a good career and two is a flash in the pan. We're yet to see which one Baker is, but if its the first, that's going to be a problem.
3) Team chemistry won't matter if they don't face adversity. I think their ego problems and selfishness will prevent them from ever going deep or challenging for a title, but they can still be a pain in our ass.