Not really, I find. I've worked with plenty of experienced, "good" authors who still have to go over their stuff to figure out if they've been unclear when they wanted to be clear and whether they need to cut something or someone, whether what's in their heads is down on the page and who have uncertainty about what's in their head in the first place or where things might be not working. Deciding how many characters to have in your story is not about measurements of talent; it's just about the process of writing and story crafting. Certainty or lack thereof about the decisions you make is not a reflection of writing ability or experience at making decisions. Lack of certainty about these things is pretty much normal for writers. Most writers will say that they'd go back and tinker with published works -- even award winning ones -- if they could (and occasionally they do for a new revised reissue.) What they were certain about in handling, they don't necessarily stay certain about. So any angle of attacking the issue can be potentially useful and it's usually, I find, not a good idea to assume an author knows of or has remembered an angle of attack he could use, even simple ones like, would cutting a character help. Sometimes the only way an author can figure things out and have the aha moment is from another person asking him questions. So MDM's questions may help or may not with the OP's original issue, depending on how useful they are with the OP's particular process.