I don't think anything he said really counters anything. Rotation & changing systems is good and much welcomed but the fact of the matter is that you can't afford to have two Ferrari's parked in the garage when the foundations of your house are crumbling and you don't have the money to fix it.
And to play two up front you need to have two strong athletic CM's behind them. Leicester had that with Kante & Drinkwater in the year they won it and the last time we played two up front we had the likes of Vieria & Gilberto with Edu & Parlour supporting them.
We simply cannot do that right now because of Ozil's position as the number ten - you can't play him in the CM behind two strikers - he's not strong & powerful enough for that role. And we've just committed a mega contract to him so he's not going anywhere.
And Welbeck won't fetch much money being on the last year of his contract & well ...... being kind of shit. Similar thing to Mustafi - we'd be lucky to get 15 million for him. It's not like opposition scouts haven't been watching us play and seen how hopeless he's been. Lacazette is one of the few that still retains his value and where we can have a capable replacement (Aubeymang).