carbo/taxol/avastin order of admin

Today we had a first time taxol, carboplatin, Avastin. We always give the drugs in that order. Today, I needed to ask the doc a question about the Avastin (if we could give it a little faster than the usual 90 min. first time) and the doc was shocked that we were JUST NOW starting the Avastin. I explained that the pt. got everything else already. He insisted that the proper way to give Avastin was FIRST. Our discussion was our that's-how-we-always-do-it to his well-it-doesn't-make-sense-google-it. we're so mature. i finally asked him where the evidence was to indicate changing the order ("google it" says the doc). well. i HAVE googled it. can't find anything to say when to give it. i might give a call to our avastin rep, but you know, they say whatever they think will make you happy. Any of you wonderful professionals have any evidence? I would especially appreciate links to web sites. or journal articles. I am a relative newbie to outpatient oncology and just starting to be confident to have these types of discussions with our illustrious docs. thanks!