The Tampa Bay Buccaneers have yet to hire an offensive coordinator after promoting Dirk Koetter to head coach, and that's prompted some speculation that they may not have one at all, especially given the fact that Koetter will retain playcalling duties.
According to Greg Auman, though, Koetter told PFT Live that he'll hire an offensive coordinator. The fact that that coordinator won't have playcalling duties doesn't say a lot: the main work for a coordinator is installing the offense and week-to-week gameplanning, not necessarily selecting the plays from a sheet. Of course, Koetter will be heavily involved in all of those things, too, so a coordinator won't exactly have full freedom.
The main candidates for an elevation to offensive coordinator should be quarterbacks coach Mike Bajakian and tight ends coach Jon Embree. Koetter wouldn't commit to Bajakian when asked in his introductory press conference, though, and he wasn't asked about Embree at all. We'll have to wait and see whether Koetter keeps it in-house, or brings in an external candidate.