Glad you mention this.

Last year, we had 2 consultants hired from some Big 4 consultancy. The manager told us to give them whatever info they need. They came with us on a grand total of 2 calls. The scheduled 3rd call we could not attend coz of overlapping schedules. They never bothered blocking my calendar and I never heard from them again.

I reckon the manager wanted to use them for some political purposes.