Gameiro sounds like just the player we need, the Trequarista if you will. Someone to link up the midfield and the attack.
Suarez does it for us now, but getting another player in who does the same will help ease the pressure and give us a lot more options.
Hulk could be that other player though because he seems to play in a similar way, likes to link defence, to midfield and midfield to attack.
Yes with Hulk,he can drop very deep and take the ball forward,dribble,shoot from range,which is much like Suarez,just that Hulk is very strong,relies on power to outmuscle players and shoot.
Aguero would obviously be the ideal player,if we are really intent.
But with Gameiro,I think someone who has seen him play a lot will be able to comment more on his strengths,and the formation that Lorient employ etc.He is 23-24,comparatively tiny in stature,has good skills,could fit in well IMO.