I’m curious. In general terms, what do ENTJs think about each of the functions they lack? (Ti, Ne, Si, Fe).
Ti: Agree that it's useful but naive in many ways and detached from reality. Ti works beautifully when there aren't any real life constraints applied to it (ex. time, cost, and incomplete information) but as soon as it's exposed to objective data it tends to collapse on itself. I remember a Ti-dom trying to make the argument that to select the best interns for our firm's summer internship we needed to avoid filtering based on resume qualifications and instead interview every single applicant to assess their strengths and weaknesses individually-- all 950 of them. I told him that was unrealistic given our $90,000 budget (it's approximately $1200 per person to fly out and put up in a hotel for a day) and to figure out how exactly we were going to accomplish that given our cost constraints and 2 week deadline. He eventually ceded the point. I frequently tell high Ti users that they're absolutely correct-- in theory-- but that's also not how the world works.
Ne: Chaos. Ne is the cognitive function most loved in the MBTI community and it's only credited as being bad when it's in the inferior position. Unlike Te which has a negative reputation in any position (dom, aux, tert, or inferior), we often forget how destructive dominant Ne can be when left unchecked. It creates lots of ideas-- but most are bad ones. Personally, I can only take Ne-doms in small doses; lack of execution, flakiness, rampant procrastination, and selective motivation are common personality traits I see in types with high Ne. The good news is that they're rarely a threat in direct competition-- too undisciplined to compete for extended periods of time (low stamina, inconsistent energy and effort) and too easily distracted (low focus)-- so TJs end up in management positions where we can dictate the flow of traffic. Ne is dysfunctional unless it's supplemented by a well-developed judging function to harness its potential. I love it in personal interactions where nothing is at stake like jokes, brainstorming ideas, storytelling, gaming, and having deep discussions but I hate it in situations where deadlines and commitments need to be met which is the other 90% of life.
Si: Useful and consistent. I wish it were stronger because my attention to detail and memory are shot to hell.
Fe: Incredibly useful in day to day interactions for building relationships and navigating sticky social situations. I don't have Fe, and on some level I will never understand how certain people go through life with that as their leading cognitive function, but I can project it well enough by using Te/Fi and I see its value. It's been a great tool to help bridge communication gaps and to become a more effective leader.