Rob Arnott is not particularly a radical when it comes to monetary policy. He is pretty much middle of the road.
In this King World interview he talks about velocity and when we could see it increase. Hope this helps. He does a monthly newsletter on his companys web site that is pretty good and is free.
He says we need to change our path. I agree. If and when we do change our path, my outlook might change with it. I've seen no change yet.