Conversation so far:
What was the plans of reforms?
Selim III had associated much with foreigners, and was thoroughly persuaded of the necessity of reforming his state
What was salutary reforms Selim III introduced into the administration?
Selim III profited by the respite to abolish the military tenure of fiefs; he introduced salutary reforms into the administration
Did the salutary reform introduced by Selim III help?
Are there any other interesting aspects about the Selim III article?
seliem III introduced reforms are well-considered plans to extend the spread of education
What else was the reforms known to do besides well-considered plans to extend the spread of education?
engaged foreign officers as instructors

Question: What other plans was useful
Self-contained rewrite: What other plans was useful that engaged foreign officers as instructors?