A shake-up in the ownership of National Broadband Ireland (NBI) is on the cards after the investment vehicle of its chairman David McCourt appointed a global investment bank to advise on the future of the group contracted by the government to roll out the National Broadband Plan (NBP). A spokesperson for Granahan McCourt told The Currency:  “As the NBP Project evolves, Granahan McCourt is exploring options to support its and NBI’s long-term vision for NBI, and to establish a long-term capital structure that recognises the maturity of the Project. This is in line with David McCourt’s stated objectives. Granahan McCourt…