If we are looking for some experience then I think Flamini would be the better option. At 29 he still has a lot to offer at the top level and probably has a good 3 or 4 years left in him. He would provide us with good competition for Cork and Schneiderlin, whilst giving us the option to rest or rotate them. His high energy, tough tackling game would fit in perfectly with our system and he is technically a top quality player. By the time he is ready to call it a day Prowsey will be just about ready to start bossing things in midfield. Obviously his wages may be a stumbling block as he is on big money at Milan having moved there from Arsenal on a Bosman.