Vantaggi
Job security, it's harder to get fired than hired. Ability to move about the business as it's so large.
Svantaggi
Performance management, the HR team and senior team just can't get this right, the company (TSO) led by Clive Selly, struggles to make decisions, and doesn't stick to its plans. The 3rd tier management are square pegs in round holes, techie managers in leadership positions and vice versa. This has come about due to perpetual reorganisations, most not needed and when three are synergies they're ignored. My biggest issue is the "EGO" culture in the middle and senior management team, they are not working as a team for BT group, they're just making themselves look less bad than their peers, which gives a false sense of success. You guys know who you are and you should be ashamed.