> So I cut everything in advance and do the chicken last.
To be honest that's better anyway - unless you have some long cooking times with nothing to do but clean up & prepare the next thing, a bit of planning & preparation - mise en place - ends up saving time and giving better results IMO. (Better results because you're not accidentally cooking something longer than you wanted, say, because you were trying to finish chopping the onions to add, and the onions aren't uneven because you didn't rush.)
To be honest that's better anyway - unless you have some long cooking times with nothing to do but clean up & prepare the next thing, a bit of planning & preparation - mise en place - ends up saving time and giving better results IMO. (Better results because you're not accidentally cooking something longer than you wanted, say, because you were trying to finish chopping the onions to add, and the onions aren't uneven because you didn't rush.)