I always feel Messi's level intimidates other attackers, they become insecure about their own level and start to look for Messi to finish. Ever since Eto'o and Henry it started happening, Pedro, Affelay, Alexis, Tello, Cuenca, Villa(started well but after the injury changed into that type of player as well), Neymar last season and now Suarez.
Quality players who look uncomfortable and insecure about their own abilities compared to Messi. Its in the national team like this as well, I have seen Higuain shoot on target all the time at Real to become a player who passes to Messi while being in a better position, same goes for Lavezzi.
Only 2 players who didnt beside Villa in his first season are Aguero and current season's Neymar.
Luis Suarez is a terrific player but he made some bad call's the last 2 games, passing when he should shoot, like with the pass to Messi instead of a lob yesterday.
Suarez needs the confidence to do whatever he wants when he sees fit (like Neymar is currently doing). I hope it will come within the next few games when the rust wears of.
In Ajax and Liverpool despite being new to the club he started like that from the start, hope he isnt conforming to a supporting role cause he is at his dream club and surrounded by payers who are at his level or better for the first time in his career (outside of Forlan of course).