挑毛病

duì rèn hé shì qing dōu bù tiāo máo bìng

对任何事情都不挑毛病。

All does not find fault to anything.

zhè jiù shì zǒng bèi qí tā jiào liàn tiāo máo bìng de nà ge rén

这就是总被其他教练挑毛病的那个人。

This was the man whom other trainers love to carp about.