Southampton boss Ralph Hasenhuttl admits his players haven't been good enough in recent games.
Hasenhuttl was disappointed with yesterday's defeat at home to Crystal Palace.
“You can see how we conceded the first goal, how easy we give it away," Hasenhuttl said.
“We are in some positions at the moment lacking quality, this is not only for the players who have started but also for the players that are coming on.
“They are far away from the level they have shown and this is the reason why we are not good enough to play what we have shown."
He continued: “It's not bad if you have something like that (Zaha as a substitute), I must say I expect more from my guys coming on.
"This is what we are lacking at the moment, Broja is not the same like he has been a few months ago. This is the difference at the moment.
"It is very hard to take but this is the realistic thing that we are always coming into this situation that we can make this up and we fail. Maybe there is a reason for that, and maybe because we are not good enough."