The collapse of the FA's proposed sale of Wembley to Shahid Khan and with it a £600m windfall for the country's dilapidated grassroots facilities, put renewed focus on whether the Premier League should contribute more of its vast wealth to the hard-up amateur game, where many matches are cancelled each winter because of the state of grass pitches and a lack of 3G alternatives.
She joined Discovery in 2009 and previously ran its British and Irish operation, which included responsibility for Eurosport.
Premier League club owners and chief executives have been taken aback by proposals to sign off a £5million golden goodbye to Richard Scudamore.
"It represents the pinnacle of professional sport and the opportunity to lead such a dynamic and inspirational organization is a great privilege", Dinnage said.
Even without the FA aiming to implement this plan, the effects of Brexit are already being felt on Premier League clubs with Tottenham boss Mauricio Pochettino alluding to it as a reason why the club failed to add to their squad in the previous transfer window.
"Susanna was the outstanding choice given her track record in managing complex businesses through transformation and digital disruption", said Chelsea chairman Bruce Buck, who led the search for Scudamore's replacement.
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'She is a leading figure in the broadcasting industry, a proven business executive and a great developer of people.
'We are very pleased to appoint such a capable leader to this important role, ' he said. As part of the selection process The FA was required to ratify the appointment - and The FA Board was unanimous.
The announcement was made after a hastily-arranged meeting with club chairmen and chief executives in London today.
Scudamore insisted the league will continue to attract fans around the world under "new and re-invigorated leadership".
During his time running the league, he negotiated record-breaking TV deals for the clubs, now totalling £2.8bn in global rights.
Amid renewed talk of a possible breakaway to form a European Super League, and recent pressure from the biggest clubs for a greater share of the overseas TV rights revenue, one of Dinnage's biggest tasks will be to keep the league together and maintain the collective-selling strategy that has proved so successful.