Considering that was the first pre season game most of those have played i think we can be pretty happy.
Musa looks an asset and i can see him on tbe left. Chilwell will be quality in six months. Zieler is a proper goalie, Drinkwater and Mendy will need to cover the Kante roll between them by upping workrate and tackle success. We still look a bit light, with another striker and midfielder needed. Also if we get Keane in it wouldnt be the end of the world for strength in depth, although i thought Hernandez looked as good as, say, Funes Mori from Everton.
If we go in to the market for two relatively big money signings (im thinking £30m total) and hold on to Mahrez then i think we can be pretty confident come the start of the season vs Hull and their 13 fit players. This Luan Viera, the polish kid and/or Robbie Brady wouldnt be bad IMO.