I guess you could think of him as the glue that brought all the different professions and disciplines together, to get a finished ride in a park, open to the public. Based off a concept, design and vision that he and others would have created. A huge task requiring huge talent. The good think about No Limits is you can very quickly and easily get a concept built and into 3d space, so that your idea can be properly understood by others. I think this is how JW got his ideas and whatnot across for projects, such as the Wicker man drop. Like others have said, he would have had a big role in getting the designs how he wanted, then other people doing to nitty gritty work. If you are spending how many million on a coaster, you are going to be able to get the profile and design exactly how you want. It is like when you buy a car, you choose the colour, but you do not paint it yourself. Credit where credit is due though, while other people did the technical work to make rides such as Air possible. I believe he was instrumental in the idea and overall concept for both B&M's Flying and Dive coasters. I am sure that the original plan for Alton was to have the flying coaster debut for 1998, but the design and concept development was no where near ready, so we got Oblivion instead. Which while having technical challenges of its own, were not as great as the flying coaster concept. I can see work happening on Nemesis very soon though, it needs it. I cannot see the park or Merlin for that matter, wanting to remove Nemesis, at all.