I actually really like the changes A lot of people hate this show for all the changes it made, like Raph being the leader throughout most of the series, but I personally really enjoy them. With Raph being the leader up until the last few seconds of the season two finale, it gives Leo a chance to have a personality that actually shows, plus I was kind of getting tired of Raph's usually hot headed personality anyways, so it's nice to see him be a bit more responsible for once. The people who don't like this show need to respect that it's not meant to cater towards older fans, but rather to introduce new fans to the tmnt franchise in a fun and unique way.