Mick McCarthy's side have picked up headline-grabbing wins against four of the top six Barclays Premier League teams, but currently prop up the table - partly due to their inability to get results against their relegation rivals.
Wolves play West Brom in the Black Country derby on Sunday but the Molineux outfit have collected just one point from a possible 15 against the four teams directly above them.
Craddock said: "It's so tight down there that we need to beat the teams around us to get above them. It's as simple as that.
"It's frustrating that we've gone on to beat Chelsea, Manchester City, Liverpool and Manchester United but are still bottom of the table.
"We've just got to look at those games and take all of the positives into every game we've got left."
Source: PA
Source: PA