We can beat England. We won't, but we can. I think Barclay summed it up well in the post match interview, you can't play like in the first half against Wales and expect to win.
To win, we'd need to keep the defense to the high standard, and we'd need to maintain or even improve our reasonably clinical finishing (primarily talking about in wide channels).
Watson needs to start and put Ford flat on his arse 2 or 3 times in the opening quarter.
Unfortunately, we're still missing 3 of our best 4 props (Nel, Dickinson and Sutherland) our best powerful running backrower in Strauss, plus Captain Courageous.
Which gives 3 very easily targeted areas to attack. Drive back the forward runners, squeeze penalties out of the scrum, and pressure every pass, run and kick that Price tries to execute.
That then puts way too much pressure onto Russell and Hogg to create something from sloppy ball well behind the gainline, and years of watching Quade Cooper and Danny Cipriani has shown us what that results in.
Also: We're not really in the box seat.
The likelihood is if we win, it'll be a bonus point loss for ingerland. If Ireland win against Wales, the top 3 looks like:
Ireland 14
England 14
Scotland 13
Which means we still need both a bonus point against Italy, but a big PD swing (particularly if it's Ireland who win), all that assuming you AND England don't score 4 tries in either game.