Weightlifting is really such a simple thing, its amazing how people can %$@& it up. Why is it that a routine is not considered 'good' until it has 5 exercises for every muscle group? I've heard every excuse in the book, and unless you are either very specialized with your training or you're nearing your genetic 'peak' they are all terrible excuses.
What's even more confusing is that these days even beginners are figuring out that squats and deadlifts need to be included in their routines, and they include them, but its not simple enough to have a 'squat' day or a 'posterior-chain' day. Its still 'leg' day for them, and leg day means leg presses, leg extensions, leg curls, calf raises, and all other manner of worthless time wasting movements.
For anyone who hasn't reached a significant level of development(and it takes many years and thousands of hours of work), its as simple as this:
Throw out your leg day. Throw out your 14 exercises for leg and core work.
Squats are now your leg and core work. Deadlifts are now your leg and core work. Its as simple as that.
Those 2 exercises cover most of the skeletal musculature in your body. Indeed, if you trained in nothing but squats and deadlifts for the rest of your life, you would be one big strong mofo.
And I know what you're saying, "Yea yea squats are the king of all exercises and deadlifts are right behind, we know all that...".
Well you're right, you SHOULD know it, and most likely you do. All I'm asking you to do is train that way. Don't worry about your hyperextensions and weighted crunches and leg extensions and all of that, worry about your goddamn SQUAT. Worry about the WEIGHT you are squatting, how deeply you are squatting with it, and how many reps you can bang off with it. You don't need to do ANYTHING else for your legs and I don't care if you're just starting or if you consider yourself an 'intermediate' level lifter. Just squat and increase the weight as often as possible. If all of your training is focused around that heavy squat workout(JUST SQUATS or JUST DEADLIFTS) and your diet and rest are in line, you will grow and you will get stronger and it will happen FAST!
You aren't too good for squats. And don't give me any crap about 'Well I squat with a wide-stance and it works my hip-flexors but not my quads...', because I'll say BULL**** to that. You can't take your quads out of it, your whole lower body will take a beating from squats with any kind of form, assuming your depth and intensity are right.
So there's my rant. Feel free to disagree, but its how I feel.