[mcast]

I've always liked the SRE approach, where you can alleviate software engineers to build new features without burdening the team with 24/7 on call duties.

[stackskipton]

SRE/Ops person here. SRE only works if SRE can look at software and go "Nope, it's not ready for production and I don't care how wanted this feature is." Almost no company is mature enough to allow that behavior.

[sgarland]

Same. SRE is generally code for “we need cloud sysadmins but that’s not fashionable anymore.”