The company claims 'speed and quality' are being sacrificed through flexible working, but the move runs counter to a growing trend towards mobile working across most industries and has sparked negative reaction from O2 and Transport Minister Norman Baker.In a memo sent out by the Yahoo HR director Jackie Reses, which was labelled “PROPRIETARY AND CONFIDENTIAL INFORMATION – DO NOT FORWARD”, and promptly forwarded to news site All Things D, employees were told:“To become the absolute best place to work, communication and collaboration will be important, so we need to be working side-by-side. That is why it is critical that we are all present in