Slade told BBC Sport: "We had chances to kill the game off at the end of the first half and the start of the second half. But we looked open at times and for their goals we have simply not done our jobs.
"It is a balancing act we need to get right. It is not about any one man, we have to do the basics as a team.
"If you don't they prove costly. You have to get to the ball, close down, make a block and defend properly. It's about discipline."