In 2007, Donovan very nearly made the jump to the NBA by accepting the Orlando Magic’s head coaching job (he was even formally introduced by the team). But within a week, he decided to stay with Florida, and in doing so, agreed to not coach in the NBA for at least five years.
His eventual move to the association came then in 2015, when he was brought in to coach an Oklahoma City Thunder team headlined by Kevin Durant and Russell Westbrook. That squad made the Western Conference finals in Donovan’s first season — squandering a 3-1 lead to the 73-win Golden State Warriors — and Durant parted for the Bay shortly thereafter.
Across five seasons in Oklahoma City, Donovan coached to a 243-157 record (.608) and made five consecutive playoff appearances, losing each of the final four in the first round. The Thunder’s 44-28 finish in a truncated 2019-20 season marked the second-highest individual regular-season winning percentage of his tenure — a surprise finish after shipping away Westbrook and Paul George in the 2019 offseason for (cumulatively) Chris Paul, Shai Gilgeous-Alexander, Danilo Gallinari and a stable of future draft choices. Moves which appeared to signal a full-blown rebuild. Donovan co-won the NBCA Coach of the Year award, voted on by his peers, for 2019-20 along with Mike Budenholzer.
Donovan and the Thunder mutually agreed to part ways when his contract expired after the season.