What’s a professional way of saying someone’s a bitch to work with

[retainertrainer]

...abrasive,aggressive,not a team player,egotistical,lazy.

How can I express that tactfully and succinctly?

Awkward

Is it love?

They’re certainly interesting to work with, is one of my favourites.

‘They are difficult to work with, and racism is never acceptable.’

I once used "Appears to have difficulty in establishing smooth working relationships with other members of the team." My boss (an Irishman) called me in and said "You mean he's a fucking gobshite." So it go the message over.