My opinion is he needs to be coached to relax and enjoy his footy. Have fun in his role. He appears to me as if he's mentally bound by some brick wallI genuinely think RTS will adapt to centre.
I could sit here and make excuses for him (has been played out of position for alot of the season so far... Etc), but only thing I can really suggest is: If Webby is that adamant he can do it, he can do it.
There's a brick wall and he needs to break through it.