  To successfully complete a complex project, be it a construction of an
airport or of a backbone IT system, agents (companies or individuals) must form
a team having required competences and resources. A team can be formed either
by the project issuer based on individual agents' offers (centralized
formation); or by the agents themselves (decentralized formation) bidding for a
project as a consortium---in that case many feasible teams compete for the
contract. We investigate rational strategies of the agents (what salary should
they ask? with whom should they team up?). We propose concepts to characterize
the stability of the winning teams and study their computational complexity.
