Celtic rue defensive mistakes

You get the impression that Tony Mowbray is not enjoying life at Celtic as much as he hoped. Instead of a team gelling under fresh leadership, Celtic seem to get rattled more and more easily as the weeks go by. This has not been a dream start for the ex-West Brom and Hibs manager.

Of course, the aftermath of an Old Firm derby defeat is always depressing for the losing party, but Mowbray - who normally defends his players in public - was uncharacteristically scathing about them after the match. He didn't mention him by name, but he was clearly seething at Glenn Loovens' performance, especially for letting the ball bounce in the area for Kenny Miller's second goal.

Sunday's first Old Firm meeting of the season exposed Celtic's problems at both ends of the park. Defensively they were a shambles, while upfront they failed to make an impact, despite enjoying lots of possession and facing a patched-up Rangers back line.

With all due credit to Rangers (and Kenny Miller, who once again excelled in this fixture), Celtic really failed to put their stamp on this game. Yes, Shaun Maloney was denied at least one clear penalty, but that doesn't excuse their myriad failings.

Of course, Celtic are also experiencing difficulties in Europe. Getting into the Champions League would always have been a tall order, especially once Celtic were drawn against Arsenal in their second qualifying tie. But the Europa League should be a rather more comfortable environment - instead, Celtic are struggling with just a point from their first two games.

The Celtic board gave Mowbray £4m to sign Marc Fortune over the summer, and N'Guemo has been a fine addition in midfield (albeit on loan), but was that enough? He was willing to listen to offers for Stephen McManus, and probably wanted to reshape the squad more than he was able to.

With their rivals in such dissarray, now would seem an ideal time for Celtic to invest in building a team that could really achieve something under the new management team. Yet again, by not spending money, Celtic seem determined to let Rangers off the hook. They have only themselves to blame.