Parkinson told reporters: "It's the start of a busy period for us. All the squad is going to be utilised over the next month or so when the games are going to come thick and fast. We've had periods like this before but I'm pleased with the way the squad is shaping up."
On this weekend's game, he added: "Orient started the season with results not going their way, but they came on the wrong side of a lot of tight games.
"You always get a good atmosphere at Brisbane Road, it's a historic stadium. I love going there, particularly when I was manager of Charlton, which was a local derby. There's always a real east-end welcome, but we're looking forward to getting down there and hopefully keep our run going."