First off all, a great treat which I like and mostly (everything) agree with.

But something I was thinking about. Mike did everything very careful. Didn't make any mistakes, and he knew Roth was smart. Then why did he send Frank to meet the Rosatos. Because this was the point that Roth knew that Mike wasn't thinking that Frank was behind the Tahoe-attack. So: he's sending Frank to death. I think Mike could figure that out and save Franks live.