Generalisations are dangerous at best, so (deep breath) here come some:

I think men and women tend to show different kinds of intelligence at work.

Men seem to have a higher TIQ (technical IQ) - they are often more adept figuring out the bits and bytes of technical problems. (Apologies to Ada Lovelace and Grace Hopper, two clear exceptions.)

Women seem to have a higher EIQ (emotional IQ) - they are more intuitive about reading personalities and understanding the relationships and politics of the workplace.

Both kinds of intelligence are needed for an IT department to succeed, and neither seems more or less dispensable than the other. In work, as in life, men and women need each other to be complete.