The phrase "about your lack of" is correct and usable in written English.
It can be used when discussing someone's deficiency or absence of a particular quality, skill, or resource.
Example: "I wanted to talk to you about your lack of communication during the project."
Alternatives: "regarding your deficiency in" or "concerning your absence of".
If you're secretly annoyed with yourself about your lack of a particular skill you'll be touchy about it.
"You don't need a heart," said Oz. "You just need to build up a social-media presence about your lack of a heart.
And one reason you're overpaid is so guys like me -- rank amateurs (though I play hoops three times a week, at my local gym, and have done so for longer than any of you Knicks have been able to hold a basketball) can complain in public about your lack of drive.
In fairness, if you'd written a single that sold 18m copies – without the aid of the kind of blue-chip hired help much in evidence on Emotion – you too might be disinclined to worry about your lack of an outrageous, headline-grabbing persona.
"The idea that a superintendent who says, 'We've got to have our kids learning more and I don't want to hear excuses about your lack of progress' is somehow a bad thing is, I think, unfortunate," said Kati Haycock, president of the Education Trust, a nonprofit group that works to close achievement gaps for racial minorities and low-income children.
Is it about your lack of knowledge?
Your fears (particularly about failure and money) and your lack of knowledge about what else is out there are likely to be your biggest obstacles.
Being young has still been a big part of your act, though, such as the gags about Umbro trainers and your lack of life experience.
And if your former boss has a good network (most do), they're unlikely to keep quiet about what they think of your lack of decorum and inability to keep quiet about the more negative aspects of your relationship.
But do speak directly about your reservations (or perhaps your lack of reservation if you trust too easily).
Your lack of judgment about the reasons and your honesty about their slack efforts (including perhaps a willingness to help train them) may just save them their job.
