Brad Gallaway takes a look at Ratchet: Deadlocked, and offers this theory:
"Insomniac Studios has done an excellent job over the last few years with the Ratchet & Clank series. Not only did they create a fantastic must-play franchise out of what could have been a boring me-too character game, they've topped themselves with each sequel. Keeping that same high level of quality going couldn't have been easy, and my hat is off to them for what they've accomplished. In fact, I almost feel guilty for writing this review. But, even the mightiest developer needs to slow down from the breakneck pace of game making once in awhile, and that's basically what I see Ratchet: Deadlocked as—Insomniac taking a break."
He then proves his thesis
here.