The proof is in the pudding, we will see how good Flamini's comeback is and how good Capoue really is. We'll probably see a glimpse of Capoue's potential this weekend, but a better indicator will be the middle/end of the season.
I'm perfectly happy with the Flamini signing, we just need to make sure we get our other transfer business tied up as well. I saw today that he is on a 40k pw 3 year deal, so he is not taking up much of the wage budget and is still a good player.
If he stays relatively injury free and plays at a good level, then this becomes a very good piece of business.