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When do we use "coordinate", and when "coordinate with"? I believe "coordinate" goes with actions whereas "coordinate with" is used when talking about an individual or a group of individuals, but I am not sure.. Examples follow:

Marc is to coordinate the annual day celebrations. (sounds okay)
Tony will coordinate all activities related to this project. (sounds okay)

Sheila has been asked to coordinate the marketing team. (?)
Sheila has been asked to coordinate with the marketing team. (sounds better, but not sure if this is correct usage)
Sheila has been asked to coordinate Kevin and Jason (of Marketing team). (?)
Sheila has been asked to coordinate with Kevin and Jason. (better, but not sure)

I'll appreciate your help on this.. Thanks.
Comments 
Hello!

"Sheila has been asked to coordinate the marketing team. "
I think it means S. has been asked to do some work so that all persons working in the maketing team are well coordinated between eachother.

"Sheila has been asked to coordinate with the marketing team. "
S. has been asked to work in coordination with the marketing team

"Sheila has been asked to coordinate Kevin and Jason "
K. & J. may have some coordination problems, so S. must find a solution.

"Sheila has been asked to coordinate with Kevin and Jason. "
She's been asked to work in coordination with K. & J.
I think all of your sentences are OK.

coordinate X = arrange X.
Marc is to coordinate the annual day celebrations.
Tony will coordinate all activities related to this project.

coordinate X = to organize/harmonize X.
Sheila has been asked to coordinate the marketing team.
Sheila has been asked to coordinate Kevin and Jason.

coordinate with X = to get along with X.
Sheila has been asked to coordinate with the marketing team.
Sheila has been asked to coordinate with Kevin and Jason.

paco