Defensive substitutions?

I haven't re-watched the game yet, but at first glance it seemed the browns in the second half used the no-huddle perfectly against our inability to make defensive substitutions. When we started a series in our base they ran curls and flares for chunks. When we started in nickel they gashed us off tackle. After the Philly preseason game and today's second half, we will be seeing a lot more no-huddle from opposing teams. I think between Shazier getting comfortable and Dick Lebeau we will defend it better in coming weeks. Great to start with a W!