Established operators are facing a perfect storm of pressures including supply chain and economic disruption, and key decisions about how far and fast to adopt new architectures such as virtualized RAN. These storms often create internal tensions, or at least provoke strategic redirections that may, in turn, lead to executive reorganizations. The latest company to announce changes to its networks leadership is UK incumbent BT, whose high profile chief architect Neil McRae is set to leave. The shake-up of BT’s internal Networks unit reflects the increasingly convergence of the networks themselves with other technologies such as security and cloud. CTO Howard Watson will extend his responsibilities to include security, for instance, and takes a new title, chief security and networks…