Right. One of my favorite parts of Concourse is that all the config is declarative, in YAML that teams can (and do) check into a public Git repo (with the secrets kept elsewhere).

That lets teams share Concourse task and resource definitions. Many teams (including mine) publish our pipeline definitions too [0]. This enables "tooling" type teams build components that get a lot of re-use by other teams.

disclaimer: I work for Pivotal.

[0] e.g. code.cloudfoundry.org/cf-networking-ci