Our greatest accomplishment…Re: "an engineering group used English units while most of the team used metric."
I hold the English to be guilty of many things (not least the continuing subjugation of my (& God's) own country) but I can't agree that it's fair to accuse them of persisting in the use of the Imperial (not English) system of units!
It seems to me that it is (you?) Americans who persist in using gallons, ft., lbs. & °F, etc. ?
But in my defense the term is still used from time to time to describe U.S. customary units. No doubt a remnant of the revolution.