No, no.
Beating foreign teams that belong in L1 and Coventry who are currently 13th in the Championship doesn't do anything for our building. All it really does, is give some fans a buzz for a while. It could even be more counter productive than helpful. You get arrogant when you win. We got arrogant right up to the 2nd half against Brighton, and when they showed up they knocked us clean out. Thought we were back on track beating a dreadful West Ham and get easily beaten by winless Palace.
Hard to say now. If we got to the final and won against Coventry, a not-interested City and then United play a B team and then we have Southampton and Palace in the semi and the final, it would be hard to really be overly proud of that win.
In 1999 we beat Liverpool and Man United on the way to the final. Liverpool at Anfield.
In 2008 we beat City when we had 10 men, we Woolwich 5-1 and then Chelsea in the final.
TBH, I can't see United doing anything other than trying to go strong in the 1/4 final so my scenario is unlikely.
It's also unlikely Palace and Southampton see off Liverpool and Woolwich. So if we beat United, we're likely to have to play 1 or both of Liverpool and Woolwich to win the whole thing.
I doubt Woolwich would go weak against Us, and I reckon Slott will want an early trophy.