Need Root on strike to keep the runs flowing. Yes Sibley is grafting but his scoring rate here leaves a lot to be desired.
Sure you won't agree @The Rat but I expect more than 65 off 229 balls from an opening batsmen but there we are. He's digging deep, and asong as he can nick singles and keep Root on strike for the time being then we'll be fine.
This is how I want him to bat
Wear down the bowlers
He needs to stick to it and not give them a wicket