I have hundreds of Juniper EX switches. If I want to upgrade all of my, say EX2300s, or perhaps even 10 of them, I shouldn't have to create 10 individual jobs in the firmware upgrade section of NCM. As long as the firmware upgrade template has the ${Subfolder} Macro in the install command, I should be able to create a single job (ie. Upgrade EX2300s), reference the 10 individual switches I want to upgrade, fire off the job, and the switches will upgrade in parallel, not one at a time. Creating 10 individual firmware upgrade jobs (or 50) is an extreme waste of time.
