"If there was an easy solution, we would have acted on it," Adams said. "So, we're going to have to continue to look at this on a daily basis. As of now, we are in a situation where we have a player that is resistant to what our experts are saying, and we are going to continue to trust what our medical doctors tell us, which is in the best interest of Jack as a human being and as a hockey player."
Adams cited Kyle Okposo, Zemgus Girgensons and Craig Anderson as veteran players who can step up in leadership roles, and Rasmus Dahlin, Dylan Cozens and Casey Mittelstadt as younger players who have made great strides both on and off the ice over the last year.
Much of the growth of those younger players came under the watch of Don Granato, who was named Buffalo's interim head coach on March 17 and was promoted to the role full-time this summer.
"These guys have qualities of taking initiatives and being determined," Granato said. "Those are really strong attributes that are signs of capacity to be leaders or become leaders - not afraid to take initiative and in the face of mishaps, determined. Get right back up and go right back at it.
"Those are really strong leadership point so I don't see any need to appoint anybody to that position. We're an evolving team and we have a lot of evolving players, but those components are very exciting to me."