it all depends on the person and what they want to achieve or are doing.....protein intake is not an exact science, neither is the "what type of protein" To take...we all can debate the best protein, when to take it, how much etc...personally, I take an isolate shake pws, and upon waking in the morning...I then take a combo of casein/whey througout the day, generally in about 6 meals with a minimum of 50 g per meal...that includes shakes.....so I generally take about 2 g of protein per lb of body weight.....but only during a good cycle or mass/strength gains regimen.....you can mantain muscle mass with less, depending on your carb intake....to many variables huh....
IMO, the only time protein timing is important is pws, prior to bed, then upon waking....after that, it does not matter as long as you get about 30-50 g per meal..every 2 hrs...and that is not hard to do.....