Nurture

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we would want to push it to another nurture track based on a few other parameters(like revenue, industry, num of employees etc) 

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When you say another nurture track - I'm assuming that you meant another nurture program stream. You can create a recurring batch campaign that runs daily to pick up the exhasuted leads in the stream 1 with normal cadence and in the flow adds people to a wait step of 7 days, and then changes their EP program stream to the next track (stream) based on the parameters you mentioned in the question. I would recommend using the nested default program as the stream content with email asset and send email campaign created within. In each of the send content offer email campaign that'll be ran by the nurture program, after the send email flow step you can request a campaign that'd change the person's engagement program cadence to Paused state, wait x days (where x is the number of days you'd want to wait before sending the next/subsequent content offer), and then flip the cadence back to Normal state. You'd want to set the stream cadence to send the nurture content daily (preferably on weekdays). 

Let us knows if you've any questions.