My grandpa used to say
"No matter how much a snake sheds skin. It's still a snake"
"No matter how much a snake sheds skin. It's still a snake"
For instance, someone who is lazy won't become hard working. He can however, grow up by becoming more efficient and doing more with less work. Someone judgmental won't become tolerant, but his judgment will become more and more valuable.
IMHO, trying to change people is a lost cause. Take them for what they are and take advantage of their personality traits or let them go. And don't forget that diversity is not just about race and gender.
But behavior is not a skin, but the core, unless it is an act.