Probably happens in most administrations to some degree regarding threats or idle threats.
Agreed.
This administration might be kicking it up a notch or two though, because even Bob Woodward says he hasn't seen this type of behavior in a long time. Probably referring to Nixon.
Agreed.
The actual e-mail is innocuous when it is read alone; however, it's tone and implications can only be accurately opined by Woodward who was the recipient of the previous phone tirade to which it is referring.
In this report, where we are lacking the full context of the conversation, I would accept the opinion of a journalist like Woodward who has dealt with many different administrations. If he says the Obama team (specifically Gene Sperling in this case) is more aggressive and intimidating in their attempts to direct media coverage then there you go, they have " kicked it up "!
Now the question might be why??