He works alongside the young pilots, and is even the first person there when they awaken Heero Yuy from his cryogenic sleep.
The rest of the team mistrusts Jericho because of Terra's recent betrayal, so Dick takes him under his wing.
This gives Duo access not only to the Sweeper network, featuring other salvagers, but their parts as well, allowing him to work on the Gundams.
Wilson didn't wholly trust Dick, so he kept a close eye on the training.