Capela has been spoon fed dunks courtesy of Harden and CP3. His playing time diminished in the Postseason when it came to crunch time because he wasn't able to handle the Pick and roll and he was a liability on offense. Those who say Willie fits this team just aren't expecting much success in the Playoffs then as far as I'm concerned.
Firstly, I would be worried about getting to the play offs first before worrying who can and can't play there. Last time I checked, Sacramento has not made the play off in close to 15 years.
Secondly, you are basing your whole argument off one play off series in a year in which the whole team has been spluttering. Have you forgotten Houston's start to the season?
Thirdly, there is absolutely no issues what so ever of Capela getting his points of dunks. That is EXACTLY what you want out of a role playing big. Its exactly how WCS has been getting his points except Capela has been much more efficient at it while doing the things that we wanted WCS to do.
Fouthly, Capela is 25 years old. Do you honestly think that he is a finished product? Do you honestly think that there is no way he can improve his pick and roll defense? He has been a very productive young big despite the deficiencies you are pointing out. So does that mean we can't play Bagley in the play offs because he was abused in the pick and roll all season long? Should we ditch him as well since we can't play him in the play offs either?
Fifthly, there is no way in hell you will get a more talented C in the free agency than Capela for that contract price. That contract is roughly 1.6 times the MLE for a 25 year old that is one of the more productive big man in the league. Last time I checked, talent is king. Always has been and always will be in this league.
Lastly, you don't expect Capela to play 48 minutes a night. If he is getting taken advantage off defensively, the coach will have an option of Bagley or Giles at the 5. Capela would be a 30 mpg player for us anyway which is what you want out of that position with Bagley and Giles on the team and needing development minutes and even in those minutes, you are still getting a double double from a player who is still 25 years old and yet to enter his prime.
IMHO, if the trade price is reasonable, this is a no brainer for the Kings. It is highly unlikely that Capela is not tradeable at any time during the next 4 years. Its not like you are dropping 4 year $112m deal on a 33 year old Horford or a 4 year, $140m deal on a 29 year old Vucevic where you are resigned to the fact that in year 3 or 4 (or even sooner) that contract becomes unmoveable without giving away assets to shed salary. Capela has 4 years and $74m remaining on the deal at an average of $18.5m. At no time does that contract become unmovable.