Some people feel he is too small and two years away from making a major contribution.
But some groups already have made a major contribution to the growing response.
"This is a major contribution to what they know about themselves."
We believe they will make a major contribution to road safety.
European Union action has made a major contribution over the last year.
I think the actual data in the paper is a major contribution to knowledge.
Insurance makes a major contribution to Europe's economic growth and development.
This has made a major contribution to the present crisis.
Both sites continue to make a major contribution to company sales.
His first major contribution was in the area of development economics.