It is okay to be optimistic. All of us reflect our own experiences, nothing more. Don't take criticism personally. It's not about you. I am thrilled with the addition of Mr Willis, Jr. Let's see what he can do!
True. I have concerns, too. I like bangers, space eaters and wide bodies. But, some skinny guys have shown to be great rebounders such as Dennis "The Worm" Rodman and more recently, Jarred Vanderbilt.
No. Parker was pretty limited, anyway you cut it. Try to find him some clock based on match ups and situation. But definitely not a guarantee to start every game.