New campaign, semi-experienced players... Options

[Supercilious]

I am starting a new campaign, in it I will have five runners. (Shaman, Face, Troll Gunbunny, Elven Infiltrator, and a Dwarven Decker). The face and the Troll Gunbunny both have some experience, understand the rules, and have played in several campaigns (Mine and others). The Elven Infiltrator and the Dwarven Decker both have played in a single campaign of mine, which lasted about four months, and I never did anything too rules heavy (But they understand how the ropleplaying and planning aspect of a run work, they just only ever had two shootouts). The shaman has never played, and has no experience.

I am thinking about phasing them into the new campaign in three parts. I will run a single seperate run for the Face/Gunbunny, then Face/Gunbunny/Infiltrator/Decker, and then for the third run I will put them all together. (The idea being that each run requires additional talent until the team is established). Writing these runs is no issue, what I am worried about is inter-team division and players perhaps feeling left out, as the Shaman will not have any "established" connection to the other players when he comes in.

Is there a better way to give everyone some more experience before the "real" runs? I want everyone to have time to "rethink" how to play their characters before I put them in true danger.