Probably not as weird as it sounds. Warner was their QB coach from 2007-2012. The TE coach has coached both TE and OL for 30 years.
Staten was the TE coach before he had become the OL coach. And so on....
It is pretty weird. All he did after a truly awful offensive year is just rearrange his offensive staff. This was an opportunity for him to actually find some fresh ideas at OC and he punted.