Ridley is obviously playing a different stley of football then they have ever played before. They are actually much bigger across both lines than Springlield and if the rain holds up they will have a big advantage with their running game.
Springfield has not really played anyone yet, but they have a very resourceful team in getting to 5-0. They have been using 2 QB's-one a running QB, the other more of a passer-and are going with the hot hand during the game. Their skill positions are comparable to Ridley but as noted above-their line play is not. I think you can throw on Ridleys D-so lets see hopw the weather is.
They are both solid and well coached on D, with Springfield having a knack for creating turnovers. IO think they will have to create a few or have Ridley put the ball on the carpet in order to hang with Ridley for 4 quarters.