BizTalk Orchestration – best practice.

Hello Gurus, I was wondering if anyone here can help me with BizTalk implementation,

I am integrating with Dynamics CRM, and have defined orchestration to handle the creation and updates of account and contact entities, I have implemented the solution and works fine but I want to refine the solution, below is what I have done

defined orchestration to handle account message

1) receive account message

2) perform lookup to see if contact exists (fetch request using crm adapter) if exists set action attribute to update else create

I have defined a seperate contact process orchestration to receive contact message

perform lookup to see if account exits

if account exists create contact, otherwise sleep for 5 min and repeat the process until account is created –> how can improve on this scenerio

i’m fairly new to Biztalk, but well versed in Tibco. I was thinking of sending a message to messagebox from the account orchestration and set some correlation id (account id) and instead of using timer define a receive shape which subscibes to the message published by account orchestration process.

your comment would be much appreciated

ambishan