Waratahs skipper Dave Dennis has warned of his side's peaks and troughs after an extremely underwhelming 21-13 loss to the Blues on Friday.
Dennis' men slumped to defeat at Eden Park on ANZAC Day after wasting possession and attacking opportunities time and again as they fell to a Blues outfit badly struggling for form.
The captain warned that the Waratahs, flying high after a blistering start to the Super Rugby season, could soon slide down the table with the competition incredibly tight, and miss out on a play-off spot.
"I said to the boys after the game that we'll end up the same as last year, won eight, lost eight, because we're up and down with our consistency," Dennis told the Sydney Morning Herald.
"Some teams won't punish you - last week we turned over too much ball but we hustled well in [defence], where tonight it just hurt us.
"We're going to face that moving forward, for every team in this [competition], if you give them easy ball they're going to hurt us.
"We need to be better or we'll end up mid-table.
"We're talking about having a winning attitude and a winning culture, and that isn't how you do it."