Team tasked with integrating advertising into app has reportedly disbanded.
UK based football club wants someone with decade's experience working in agencies.
Sorrell is merging Circus with S4's global content practice, which is built around MediaMonks.
TfL found at least 14,000 Uber journeys involved uninsured drivers.
User growth was particularly strong from outside North America and Europe last quarter.
It has begun tests on hiding count on its Android app
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