New COO. Tasked a group of us to implement a new project within 1 week. Typically this project would take months if not the better part of a year to implement. The COO didn't bother investigating whether it was a good idea (it wasn't) but whatever, we worked our butts off to get it in place. I personally put in extra hours and effort to try and get a multi-month project in place over the course of a week. The only guidance was very vague 'we want something like X but we want you guys to figure out what it looks like'. I shared updates throughout the week with the COO and other executives, no feedback. After getting consensus with the group working on the project I sent out an update to the team letting them know what the plan was so that we could execute on the hard date the COO had put out (we had been told no excuses to not make it happen). COO responded angrily and accused me of trying to elect myself leader of the project she assigned me to implement? I'm not sure if she was wanting to put out the communication to take credit or what (which would have been fine). Not sure why I put in the effort at this point, would be nice to have clear expectations.