Two years ago, the world of late night talk shows was in a completely different place, with David Letterman on the way to retiring from The Late Show , and Jimmy Fallon being just a year into his tenure as The Tonight Show ‘s viral-friendly new-ish host. Fallon’s popularity had been largely consistent since he took over, but his current Late Show competitor Stephen Colbert has made impressive strides to close the ratings gap, and it appears Tonight Show producers are going to make some more changes to stay relevant.