The answer to both of those questions is that you CAN send in the same items. However, that isn't typically recommended because it may be your essay and/or LORs that turned the adcoms off to your application in the first place.
If they weren't the motivating force behind any decisions, then you might also suspect that those items weren't strong enough or polished enough to really boost your application to where you wanted it to be.
I'd redo them.