6:38pm: Denver has been granted permission to speak with Hollins, a source tells Ronald Tillery of the Memphis Commercial Appeal (Twitter link).
6:20pm: In addition to Hollins and Shaw, league sources say that the Nuggets plan to examine Nate McMillan and Alvin Gentry for their head coaching vacancy as well (Yahoo Sports' Adrian Wojnarowski tweets).
12:37pm: The Nuggets have received permission from the Pacers to interview Shaw, tweets Ken Berger of CBSSports.com. Denver has also lodged a formal request with the Grizzlies to speak with Hollins, Berger adds (via Twitter).
Although Shaw and Hollins are viewed as the Nuggets' top targets, ESPN.com's Marc Stein names Quin Snyder as a potential under-the-radar candidate (Twitter link).
10:42am: Having parted ways with George Karl, the Nuggets are eyeing a pair of the offseason's most frequently mentioned head coaching candidates. According to Adrian Wojnarowski of Yahoo! Sports (via Twitter), Denver plans to request permission to speak to Grizzlies head coach Lionel Hollins and Pacers assistant Brian Shaw.
As we've heard this week and reiterated this morning, Shaw appears to be near or at the top of both the Clippers' and Nets' wish list, so he may ultimately end up having to choose between multiple offers. Hollins is also a candidate for both clubs, though it sounds like L.A. has a little more interest in the Grizzlies' coach than Brooklyn does. The Clippers were also linked to Karl even before he became available, so if their interest in him becomes more serious now, it could create an opportunity for the Nuggets to get a better shot at Shaw or Hollins.
If the Nuggets do zero in on Hollins, it's conceivable that Denver and Memphis could essentially trade head coaches, according to ESPN.com's Marc Stein, who says the Grizzlies intend to reach out to Karl (Twitter links).
Given how fresh the Karl news is, no other names have surfaced yet as potential candidates for the Nuggets. But Wojnarowski tweeted this morning that the team is confident in its ability to land an elite coach, considering how much talent is on the roster.