Here is a method that will not depend on what the system admins have done.
Make sure your code is creating/referencing the "work" files using single level names. MYDATA instead of WORK.MYDATA.
Then you can create a USER libref and SAS will automatically use USER.MYDATA instead of WORK.MYDATA for the single level name MYDATA references. Or look into the USER= option to use a different libref for the location where you want the single level names to go.