Lost Earl and Malins, haven't replaced them (and Siale Piutau).
Lots of injuries this season - Radrada, Naulago, Randall etc.
Nathan Hughes out of form/favour.
How many of their tries last season had a significant contribution from Earl, Malins, Radrada, Naulago or Hughes?
How many of the current Bears team would get into a first choice Tigers team? Maybe Attwood, Luatua, Piutau, Sinckler & Radrada? That squad has a handful of world class and a whole lot of average.