Huh? He's been awful for a sustained period of time. Way before Ten Hag arrived. Just look at the various 20min long compilations on YouTube.
I'd feel more sorry for the guy if he took some of the blame for our poor form a while ago. But I seem to recall he didn't, blamed his team mates instead and continued to big himself up.
He really was an abysmal Captain choice by Ole. Granted we didn't have many options at the time.
As for the booing, if you do dumb shit on a regular basis then the fans should be able to call you out. They can boo at half time, full time, make songs, chant you don't know what you're doing at the Manager. The online abuse players get is terrible though, social media at its worst.