This post is typical ignorance.
With a better start, a few different bounces and some better health, and they're in the top 4 anyhow.
Sure, they need to sort some players out, but it's more mental than them not being good players. Most of their lineup can play for any top 4 side.
I'm not saying they're a league winning bunch, but they also have the money and resolve to spend to do so.
So, luck? Stars aligned for Chelsea last year. It's impossible for it to happen in consecutive years and line up so perfectly.
Ok guys, what's so fantastic about Chelsea?
Their defenders?
Terry, Cahill, Zouma, Az, Rahman, and Ivanovic. Pretty average run of the mill EPL defense. It's part too old, and part too inexperienced.
Their midfield?
Matic, Ramires, Mikel, Oscar, Fabregas, Matic, Loftus, Hazard, Willian. What stands out here for everybody? Willian and Hazard are great, everybody else is meh. Ramires/Mikel/Oscar/Cesc are pedestrian.
Attackers?
Costa, Remy, Pedro, and Falcao. Costa has been garbage, and his suspensions are directly leading to points lost. Remy/Pedro/Falcao are crap.
People praise Chelsea because they somehow won the EPL last year. They didn't have a good squad last year, and miraculously walking away with a title doesn't somehow change any of that. Chelsea always stay healthy, and their tactics gets them wins.
I cannot look at that squad and call them anything but good. They are very good at staying healthy, and managing games. Cool.