La vie sexuelle
Learned
The impression I got is that he had the final say on any and all creative decisions, and can thus receive at least some credit for its consistency and high level of quality (something the other Fallout games lack IMO).If you read the history of Fallout's creation, you will discover that Tim was the spiritus movens of the entire enterprise, which is what it is only thanks to other people (for example, often forgotten Boyarsky or disliked Fargo). He mainly dealt with the engine, and the rest was minor contributions to everything, such as a few less important quests.
Funnily enough, though, the only example I can give of that is him cutting the Warrens, which I actually think was a big mistake because it would have been one of the coolest areas in the game. But still. Tim! Great guy.
I think Tim had, at that time, the ability to bring out certain positive things in people. These things weren't necessarily in him, but he evoked them from his associates.