Ha Ha! Welcome to the world of Starchitects. For a building like the Walkie Talkie, Vinõly would have been personally involved only at the very beginning. The question of who is actually responsible for removing the mitigation measures from the 'Walkie Talkie' is likely to be very complicated, depending on the procurement route taken by the client. It is quite likely that a 'Design Build' contract was used for the Walkie Talkie, where the concept architect hands over the design to a construction firm who then employs a completely separate team of architects and engineers to do the detailed construction design. The building is documented in the 'employers requirements' by the concept architects and then this package of information is handed over the contractor to fill out the details. I don't know how Vinõly works, but its possible his firm hands over the employers requirements quite early in the process and the problem solved by the fins wasn't clearly communicated to the design build contractor who then removed them to save money once Vinõly was no longer involved. This would explain why he was so blasé about the known problem with the concave design.

http://www.pannone.com/media-centre/articles/construction-ar...