The real reason Trump picked Whitaker

He doesn't. Sessions resigned and was not fired, so Whitaker is not subject to confirmation.

He officially took over all of Rosenstein's oversight of the Mueller probe as of Wednesday, two days ago.

"He knows it's his purpose to create disruption so the establishment can continue unhindered. "

I don't know, this sounds a little too nebulous for me to believe. If there was a specific policy goal that creating the distraction would benefit, I could see it as plausible. But as it stands, a goal of sowing chaos over something as broad and poorly defined as 'so the establishment can continue unhindered' doesn't make sense to me.

Also what do you mean by 'rejection'?

Whitaker's appointment was entirely legal and within Trump's purview as president to make. Because Sessions resigned and was not fired this allowed Trump to appoint the acting AG from his own cabinet that didn't need to go through the Senate confirmation process.

Now it turns out the Appeals court appears to be wading in to the constitutionality of the Whitaker appointment and the propriety, if not legality, of Trump appointing someone to oversee an investigation into himself. But whether courts rule against his appointment on constitutional grounds is a different matter. As of Wednesday Whitaker officially took over Rosenstein's oversight of the Mueller probe. He can't be 'rejected' from a job he already holds.

And there's plenty of subterfuge he can engage in behind the scenes that will remain hidden from public accountability because of confidential nature of an ongoing investigation. He can decide to starve its budget, an idea he already floated in his role as CNN pundit, shake up personnel staffed to carry it out, and veto requests made by Mueller to issue subpoenas, pursue indictments, or open new lines of inquiry, according to outside legal experts consulted on this.

The irony is that while he may have bought off the military contractors, it's a far cry from saying the military itself is happy with him.

Some are, like the commanders in the field when Trump signed off giving them the autonomy to make their own decisions unlike Obama who micromanaged every decision himself.

But there are plenty who think he's a buffoon. Especially in IC. My dad works IC, doing what I have no idea since he's never said a word as to what he does and always refuses to indulge when asked, but my impression from him is that there are many who think he has no business as CiC because he has no idea what he's doing. My take is that they're absolutely right.