Hi,
The questions can be designed as -:
1.How many consultancies do you have a tie up with?
2.What are the rates that you & the consultancy have agreed on?
3.How many positions are closed through consultancy?
4.How many days on an average does an consultancy take to source the CVs?
5.What are the advantages & disadvantages of sourcing through consultancy?
6.Do you pay retainership fees to the consultancy?
Hope this are helpful to you,take care,
Regards,
Sheetal