I was at the game too and am really surprised you say that about Kamara. I thought until he went off he was probably our best player! Made some excellent recoveries, always being in the right place at the right time and was comfortable in possession.
Bailey was awful and Pau wasn't much better. Looks very uncomfortable at left back. No surprise when it was those 2 making way at half time. Looked way better with Digne and Buendia.
Definitely werent class, but a well controlled performance. We had way more quality than them