Coventry City Manager Mark Robins said that he will be looking for re-enforcements if they do not improve after the 4-2 home defeat to Lincoln City tonight.
An angry Robins told BBC Coventry & Warwickshire: "We've scored two good goals. But there was poor decision making.
"It is difficult if you cannot stop that you should should not be playing football.
"We have not defended enough and I day the same things all the time. You could write the script they don't take advantage because of a lack of aggression.
"Go and win the header it's simple. We did not win the battle and it is disappointing that we not compete.
"To concede 4 goals in that manner is a joke and if you don't put in the effort you don't deserve to win the game.
"We can still do it but this game is annoying. We need to be more aggressive. You cannot ball watch we were really poor and I'm really angry.
"We need to get the job done. I want a response from the players and if they don't do it we will look for replacements."