I don't think it's true that a court will work around his schedule, and you will have to accommodate him.
In my case, I was the parent that worked long hours/worked away.
I'm embarrassed about this in hindsight, but I did want arrangements to work around my job (as they had done when we were together) so that I could keep doing my job and have the children when suited around that.
The court told me tough basically- if I want to have my kids I will have to change my job or make arrangements to accommodate. I was told my exes job is just as important, he deserves equal down time, we both should have quality time with the children when not working etc etc.
So obviously I had to change my job and life to be a single parent. In my case we both wanted equal time with the kids but I wanted it to fit around my work which could include weeks away then weeks home. I was just outright told no and that my ex and children deserve stability, so that my ex can plan his life and work as well which is totally fair. Like I say I'm embarrassed now about it. Anyway.
That being said, the other parent has to want to parent, the court can't force either parent to have the children.
So for example say you go to court and want stability and a set arrangement. And let's just say the court agreed and says yes your exh has the kids every other weekend and one day every week. All that happens is that you have to make them available for that contact, if he turns around and says well no I can't I'm at work or doing this or doing that- there isn't anything you can do.
In one way it may allow you to plan a little better in that those are the days, you know that he can't be pestering you for contact outside of that, but if he's selfish and unreliable he may not actually take up that contact.