Here is o he study on business schools on irisheconomy (google business school rankings Tol)
"QUB ranks 19th in the 2008 RAE; UU ranks 49th out of 90 business schools. Although the RAE uses a very different methodology, this suggests that TCD and UCD are on par with the best 20 business schools in the UK, while the other business schools in the Republic are more like the worst 40."
So. We have two business schools that are comparable with the top uk schools, themselves. Amongst the top in the world. If we want truly world class rankings then fund these two and not the others.