OK: He did NOT re-write ANYTHING!!!! Some lyric changes and edits with the music to fit the production were altered by Steve. Doyle's show was already done in the UK before Sondheim had any involvement. He LOVES it, and did spend time with the director, etc. just for his input and help. Once you've written a show, you don't OWN it. You still get paid; others can't change your material, but they can re-work it without your approval.
As for Company: He did go to Ohio to see it but had nothing to do with the production. When it comes to NYC, he will give his input, but it does not mean that Doyle must adhere to it. (of course, just like Sweeney, Doyle did listen to the input...)
Margo, you are right! Doyle and Sondheim have NOT created anything together. But maybe, they might in the future... (Prince, Lapine...Doyle??)
And 'Sumofallthings' where the heck did you get YOUR info?
"It's not so much do what you like, as it is that you like what you do." SS
"Time flies like an arrow, fruit flies like a banana." GMarx