You are right. It was those attachements that was a problem. True Davis did have experience, but letting loyalty guide some decisions better made by an advisor may have been an unwise move. Lincoln tried to micromanage too. When he finally let go of the reins and gave em to Grant, things started to go their way faster and in a much more furious manner. Davis believed those who served with him in Mexico and were his friends deserved consideration because of the confidence earned in Mexico. For an example, Bragg. Great at training but not so great at command in battle.