On paper this looks really interesting, and I really hope it does well. Immunotherapy is one of the most promising recent success stories of cancer therapy. However I remain skeptical of any efforts to get academic researchers to work together, because (a) the pressure to publish-or-perish is so great that I can see them retreating back into their silos, and (b) academic researchers just aren't used to collaborating. The closest they get is to meet up once every few months to discuss each research group's progress. For this to work, they'll have to find new ways to share their progress, which can become part of their working culture.
Academics do respond to money. If Sean makes some tough rules and enforces them and gives the money to scientists young enough to care then it will work.