I think 11...Ra7 was an idea that Kasparov tried in the 80's.
Analysis of Jim West vs John Brosnan

I think 11...Ra7 was an idea that Kasparov tried in the 80's.
That is correct - GM Simon Williams recommends it as well. Rook gets off the long diagonal and slides into the game somewhere along the 7th rank.

I think 11...Ra7 was an idea that Kasparov tried in the 80's.
That is correct - GM Simon Williams recommends it as well. Rook gets off the long diagonal and slides into the game somewhere along the 7th rank.
I never said Ra7 was a bad move. I personally agree with you that this was a good idea because the battery on the d file came to fruition in a bunch more moves. However the engines are always picky and say that the fact that you never castled early on made your position difficult.
Although Jim has posted tons of games on his blog (which is over 10 years old!) and I have posted several of John's games in the past, I still want to analyze this game. Both these players are friends with me here on chess.com. I met Jim once at the Marshall CC, and I see John every Monday night at the Bergen Chess Mates. You may recall I played him once and I made a mistake early on and never fully recovered.
Anyways, here's the game.