On Robshaw. He does the unseen stuff, but so do others, last week Simmonds rackedup 23 tackles before switching on the afterburners for his tries. That showed his point of difference. Yesterday Underhill came up with quite possibly a match saving intervention.
I'd expect a flanker, especially one who's worn 7 a lot to rack up a reasonable number of tries. Robshaw has 2 in 61, even Cole and Launch who are supposed to spend the majority of the match in dark places have 4 each. The king of the unseen, Richard Hill racked up 12 in 71, Back 16, Worsley 10, Moody 9 etc. It's not the be all and end all, but just another factor in my view that it's time to try other combinations.