Kishi was terrible at a planning. Part 2 is a complete different show than part 1. Kishi should have toned down the power levels and made Naruto a random orphan
Naruto was ruined when the theme of the series was turned upside its head and Neji's philosphy was proven right after all. Naruto should've stayed some random kid and not a descendant of ninja royalty
Also as the series wore on the use of training and skill evaporated in favor of powerups on the fly. Watch the Zubuza arc and then something in Shippuden and it's like you're watching a different show
Rock Lee was the realest character in the whole show. He was the only one who truly had to grind in order to become great. Consequently that's why he became an afterthought