Parallel execution of stored procedures in job (SQL Server)

Question

Breif: I have five stored procedures and each of it have no dependencies. The identical stuff is that it pulling data from five different servers. We are just collating and

Answer 1

It's also possible to create a main job and add steps to call child jobs (each calling it's own stored procedure) asynchronously as suggested at https://dba.stackexchange.com/questions/31104/calling-a-sql-server-job-within-another-job/31105#31105

However for more complicated flow it's better to use SSIS packages which are design to handle different workflows.