Tim McNamara makes an important distinction that is often lost on us:

Agile doesn’t make your team magically speed up its ability to close tickets. Instead, it speeds up the team’s decision-making process. It’s about orientation, not velocity. An agile workflow is one where you are able to quickly adjust direction based on short feedback cycles.

Mat, Natalie & I touched on this when they dragged me on to Go Time last summer to share some thoughts on velocity. Worth a (re)listen if you’re in to such things.