Airtel will never regain market share from safaricom if all they do is follow safaricoms footsteps in innovation. Airtel's problems is it's organisational structure, it's very difficult to innovate quick and fast with tight controls and bureaucracy coming from airtel africa group, to make some decisions you have to consult with airtel africa group which takes time and could come and shut down your operations if you go ahead with plans which they don't approve of, the politics there is huge, they recently fired and replaced a group of managers and this is not the first time doing so.