I was sorry to see Charmaine go. Her performance as leader was lacklustre, but then so was the rest of her team. I'd have preferred anyone of them to go before her. From what we saw, she got nothing worthwhile from them.
Tarek's main contribution seemed to be going on about a theme, and I tend to agree with Charmaine that "grand opening" is all you need. He's done some good stuff in the past, but he's also had some bad mistakes. I won't miss him.
I think it's incredible that Gold Rush has remained with essentially the same members for so long. Sveknu called them out as a disaster 4 tasks ago. Now I think Lee is the only one of the originals left, the others all fired. Not shaking up the teams makes it harder to tell which individuals on the teams matter.