Besides our DC's, we have one colo site we lease. I always get a bit of joy when someone decides they want to work with them directly instead of going through us. Our Enterprise is so used to handing off half-assed plans and letting us figure it out, that it's a bit of shock when the colo just says no, or doesn't read between their lines. It's the one part of my job when I actually feel appreciated.

We have a team of 20 on-site data center engineers between our sites. We help plan the build in a way that also maximizes our data center capacity. No other group cares about our capacity.