A nice approach is to staff a DevOps team with people from diverse backgrounds; some more towards the system side of the spectrum and some more towards the dev side of the spectrum. As long as everybody knows a little bit of the other side. This helps ok avoiding a culture where devs "throw some code over the fence" and sysops people just moan that devs are careless and/or that they should do things differently, but without a clear way of showing exactly how differently things should be made (and also without a clear understanding of what devs ended up choosing the way they choose)