ABC has released six sneak preview clips of this week's all-new episode of Grey's Anatomy, "State of Love and Trust." As you might expect, there's a lot to cover in six previews.

In the first clip below, Derek nervously addresses staff members of Seattle Grace, having controversially ousted Richard and assumed the position of Interim Chief of Surgery.

How do you think he'll do? The doctors have their own ideas ...

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Follow the jump for five more clips from this Thursday's episode. Cristina wonders why she's been removed from Teddy's services, and Derek and Richard have it out again.

Elsewhere, Callie (amusingly) ends up smack in the middle of Mark and Lexie's unfolding relationship drama, and perhaps tells both sides more than they wanted to hear ...

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Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.