it's hard to say. can you keep the browns and drop a different player to play the matchups. Browns have a nice schedule weeks 11,12 ,13 (cin,pit,jac) but borwns are not goona get many point on def this week agaisnt det or until after their bye. Vikes aren't going to get a great amount this week against panthers but should do a little better than cle would. If it were my team i would keep Browns(because someone will pick them up) and drop another player to play matchups. NE has more favorable matchups than Vikes and about the same as Browns but Pats are not gonna get you much in week 6 against the Saints. Patriots and Browns pair up togehter nicely so I would find a way to have both and you might just have to bite the bullet on week 6.
With your options at week 6 theres not gonna be a huge difference maker so might as well plan for future.
Pitt and jets suck but play each other. Afraid if I picked one of them up Pats would be gone by next week.
Sorry if i couldn't be of more help but i don't know what your league looks like and if you have an easy week or you need every point possible
Maybe it's just our proximity to the heifer state, but they are pretty much always drafted and held here