I'm not sure about the Silva/KDB partnership.Both of them want to play the killer pass or assist and whilst I originally thought the two of them would be a match made in heaven, a season later I'm yet to see them click.
If we persist with using our full backs as midfielders, then a congested midfield is crying out for Yaya. The guy has been a legend but I'd written him off at the end of last season. He can no longer cover the hard yards but in Peps new packed midfield nobody passes a ball or sees an opening better than Yaya. The fact he also gives us height and physicality shouldn't be overlooked.
Pep's new systems could give Yaya another two years of winning trophies at City. The only downside is it would come at the cost of Silva or KDB.