What is the general technique of Rooks behind connected passed pawns?

Behind which pawn does one put his rook?

Or, is it position-specific?

I could post a diagramme of a position that came up in a recent game but I want to ask this in advance?

This was the position in question.  This is from an actual game where white had connected passed pawns and a Rook behind them, as well as two minor pieces.  Black had two rooks behind the passers.  The game ended in a draw.  What should white have done to convert the win?

Actually I see where I had the win secured then blundered into a draw.  In any case, what is a good general plan for white in this position please?  Thank you.

Hi johnmusacha--the first thing white needs to do here is break the stronghold by black's rooks on the 2nd rank.  Otherwise he'll forever be tied down by threats of checkmate or a perpetual.  1. Nd3! is a great starting move, holding f2 while preparing 2. Bf2 to intercept those rooks.  This also allows Rc1 if his c-pawn comes under attack.  From there he'll force the rooks away, break his king free, and focus on keeping those queenside pawns connected.  e3 isn't vital and might be given away rather than losing a tempo defending it; however, black's passed kingside pawns do pose a threat.  Ideally white wants his king around f3 or g3 with his knight recentralized and his bishop out of harm's way.  Then he can get a formation going like pawns on c4/b5 with rook on c1 and those pieces alone will soon overpower the opposing rooks.

Thank you for your time and willingness to help.  Based on your response and some other research I did, I'll take your explanation as the best likely answer, so once again, thank you.

I see that Rc1 fails to ...Rh2, forking a mate in one and the loss of the bishop. 

What I did in the game was got my passed pawns to b5 and c6 and then traded off one of black's rooks; that was a winning position as I could have promoted the c-pawn but I managed to blunder back into a drawing position. 

Keep analyzing after 1. Nd3 Rh2 though; white plays 2. Bf2 and simply follows 2...Rh1+ with 3. Bg1.  Then he plays 4. Nf2, boots the rook out of there, and he's ready to go.

Black had 2 rooks behind the passing pawns, the best thing to do is actually one rook behind the passing pawns and one to the side of them. Example given from Fischer - Spassky, game 10 1972:

 Position after: 39. Rb6