While the applications/resumes have been written well he goes on to talk about lack of experience. By this he means the lack of real job experience especially in the field that you are trying to get into.
Having done bootcamps my education he opened my eyes as to improving my resume. He points to the fact that just doing the projects isn’t enough as you are guided through the process of how to complete them. Instead, suggesting that you get involved with an open source project by contributing and having your code reviewed and accepted. Then, showing the code that you contributed to the project will better demonstrate how you apply code in real situations to make a project better. Not only that but, this shows your true passion for coding as well.