Ok then genius. Enlighten me as to where Hazard would play if we signed Kagawa as well. What's your best starting 11?
What's to say either of them will actually start? If anything it'd be difficult to accomodate both of them in a single game, because both are far more used to 4-3-3 than 4-4-2.
If we went 4-3-3 I would guess something like this
Carrick - Scholes
Valencia - Hazard - Nani
Rooney
but we love to rotate, so you could also do this
Carrick - Scholes
Valencia/Nani - Kagawa- Hazard/Nani
Rooney
For now in 4-4-2 I still think we'd mainly use Nani - Rooney - Welbeck - Valencia, when they've actually all played together they've been excellent (Everton) but those 4 have a tendency to never be fit at the same time, plus you'd be resting them, so you could put Kagawa in for Rooney, Hazard on the left etc.
I also think that SAF will start trying to train Hazard in a 2 man midfield against lesser opposition, he's more than capable of it with his talent, he just needs to 'bulk up' as we all say, and with someone like Carrick beside him we'd be fine.
I don't know why you're talking about Kagawa as if he'd just slot into the team, he'd probably get less games than most of the players above, for a while at least.