You all know that Orochimaru went through so much trouble to get Sasukes body(he actually wanted the sharingan) . He even waited 2 years so that he could acquire Sasukes sharingan. My question to all of you-hardcore-Naruto fans out there is:
Why didn t Oro simply acquire Sasukes sharingan by a simple transplant jutsu? (Like how Rin did for Kakashi to get Obitos eye...)

Lack of medical ninjutsu skill? I am pretty sure that Kabutos medical ninjutsu > Rins
Look at Kakashi. There is nothing wrong with his sharingan. He can even use mangekyou.
So what was the whole point of Oro waiting 2 years to get Sasukes sharingan? Anyone else think Kishi just messed up on the plot?