What steps can faculty and staff take to promote excellence in, and importance of, teaching? tl;dr

Faculty don't think teaching is as important as their other responsibilities; how do we change that?

Long version

I've been working in academia for a long time and whenever I see instructors half-assing their teaching the go to excuses are that they have no time, or that it doesn't get any respect/grants/promotion/tenure/etc. I don't doubt they're busy, and I know departments don't typically reward teaching excellence (or punish teaching mediocrity...) but the students are suffering as a result.

How can we (faculty that care about teaching and staff supporting faculty) change this situation? What can we do short-term to make faculty care about teaching now and what can we do long-term to make departments care about excellence in teaching, and not just in research?

Note: I'm aware research brings in money. Keep in mind most faculty are adjuncts who aren't doing research but still have tenured research faculty that don't care about teaching as their role models.
Putting in place a better system for evaluating teaching than today's student evaluation forms would be a good start.  Getting serious about the assessment of student learning outcomes (rather than simply assigning grades) would also be extremely helpful.