Yes, no one is perfect. You make a mistake but the most important thing is if you admit your mistake and find a solution to fix it. I look at this way; We got Gortat for Richardson and Barbosa and I am fine with that.
Now, why did we get Hakim and not keeping Amunson? Hakim has flashes of great finishes but he is not a good defensive player or even rebounded. Can we fix that mistake?