Harrison gives the reason as:
Following a thorough recruitment process, Rob stood out in a very competitive field," said ECB chief executive officer Tom Harrison.
"His passion and knowledge of the game at domestic and international level is outstanding. He is a proven leader and combines an approachable nature with fresh original thinking and resilience which will stand him in good stead.
"He will bring a lot to the role and I am sure players and staff alike will enjoy working with Rob."
It seems an odd one to me as well. Very interested to see what plans he puts in place to chance the short term and the long term. Agree with you on Broad as captain. Seems by far the most sensible short term solution