As a leader, an INFJ should not get bogged down with being INFJ. Every individual is, of course, going to have their own incentives.
Projecting confidence and security are always prerequisites to leadership of course, but it's important to identify the incentives that will work for each person. An ESTJ is not going to be motivated by more solo projects and better equipment, but instead with domain (doesn't have to be people) and affiliation/group projects...especially ones they get to control in some aspect.
Assess what the people around you are going to be motivated by...solo projects vs group work, more power vs more independence from power, rewards for achievement, etc.
I'm also a big believer in getting people into the right position. An INTP should not be doing data entry...but an ISTJ would be excellent at it. Of course, you have to watch out, because most people, SJs especially, are very status driven and want to be in the prestigious positions...even if they aren't right for them.
The worst mistake in personnel assignment is what I call the WTBA...Worst Traditional Business Assumption...which is that people that are good at taking orders are going to be good at giving them. WHY would you ever take your steady, dependable, reliable, but not very ambitious superstar "grunt" and expect them to know how to manage? 9 out of 10 times they just continue doing grunt work, and don't at all know how to delegate and train. If assigning "subleaders" don't just assume that your best worker will make the best leader. It's a terrible assumption.
Lastly is communication. Know that you're an NFJ, and NFJs just believe whatever "makes sense." SJs are going to be a lot of the same way, but what "makes sense" is more narrowly defined. Just remember that a lot of types don't communicate in this fashion. You can't just tell them something and expect them to tell you how great of an idea that is, that it makes sense, and then they implement it. This is especially true if you have people of the NT persuasion under you...they want justification, they want convincing. NTPs will contradict you, but not out of disrespect or because you don't make sense, but to give you their ideas so that you both may discuss the issue with everyone's available data and come to the best conclusion. SPs you're going to make no sense to, they just aren't introspective like INFJs are. Honestly, I have so much trouble communicating with SPs (even ISTPs, who I share a primary function with) that I can't offer a lot of advice here. It always helps to appeal to their senses/fun side obviously...never met an SP that didn't like alcohol or sex for example. Perhaps offer tasty treats for jobs well done?