Huffington Post has a look inside the teams assembled for Ohio:

Rival candidate Senator Hillary Clinton is also deploying her most battle-ready field marshals to Ohio. While both campaigns have had skeleton teams in Ohio since January, now the big guns have unpacked their bags and set up their state headquarters in Columbus. They’ve also brought their entourage of top managers, field directors, GOTV staffers and consultants with media buys planned, along with scheduled campaign events and candidate appearances.

Behind the scenes of the Obama-Clinton race to capture Ohio’s 161 delegates, the biggest jackpot of states still in contention, it will be a killer match between each campaign’s point man: Paul Tewes and Robby Mook.

Among campaign professionals,Tewes is widely regarded among the very most talented of political organizers in the nation – he’s largely responsible for Obama’s surprise win in Iowa, which proved that the “inevitable” nomination of Hillary Clinton wasn’t so inevitable and that white voters, independents, and women could be lured to Obama.

Mook also comes with an impressive campaign record. He was Howard Dean’s field director in the New Hampshire Primary and a former deputy field director for the Democratic National Committee. As the state director for Nevada, he led Hillary Clinton’s impressive win there last month, successfully wooing Latinos and women back to the Clinton fold.