I commonly hear in the hot seat and not on the hot seat.

我经常听到的是in the hot seat而不是on the hot seat。

Some online dictionaries give examples of this idiom using the preposition " on" – to be on the hot seat.

一些在线词典给出了这个习语使用介词“on”的例子——to be on the hot seat。

The coaching staff is on the hot seat. Yeah. And I don't look, Devonte Adams season is terrible right now. And it's not like he's not open on, on most plays.

教练组正处于尴尬的境地。是的。我不认为，德文特·亚当斯的赛季现在很糟糕。在大多数比赛中，他并不是没有开放的态度。