Seems to me that this might be a man / woman thing. I am a newly bumped player. I have friends at the next level and a couple have already invited me to play, but I know that I will be one of the last off the bench.
I wont get hurt or upset if I dont play, and I certainly wont begrudge any captain that does not invite me ... because I know my level of play is at the bottom of the next rating. I am not as sexy (to 4.5 captains) and I know it. I genuinely think this is true of most men.
Based on my casual observations of my wife, daughters and female friends I think women associate inclusion with whether they are liked or not. If this is true, I gotta believe that this point of view creates some additional challenges for you as a captain of a women's tennis team.
"You should be playing linebacker, not singles."