​McInnes worked wonders with Hearts before returning to Rangers, where he had a playing spell [Getty Images]Where do you start? How do you catalogue the insipidness of Derek McInnes’ Rangers team in Jablonec?How do you catalogue the Pedro-Caixinha-in-the-bushes level embarrassment that the club experienced in their exit from European football on Thursday?In Jablonec, Rangers were unspeakably awful, devoid of any cohesion, desire, threat, their manager reduced to saying how embarrassed and mortified he was multiple times post-match.They had one shot on target the whole night, one goal scored in 210 minutes. Rangers fans in the stadium gave it to them with both barrels at the end.McInnes apologised. The whole scene was cringe-making. He tried to explain what he was trying to do with his multiple switches of formation and attempted to explain why his side were “miles off it”.Talk is cheap in his position. There’s a limited shelf life for that kind of thing at Ibrox.The chat from some Rangers folk in the preamble was that the Conference League meant little to them, that an exit wouldn’t spark an uprising, that no midweek European football could give them a chance to hurl themselves at the Premiership instead. Fine in theory, but not in reality.The notion that a defeat would be met with a collective shrug by Rangers fans was never a serious proposition. This defeat sparked untrammelled fury.McInnes would be as well staying away from social media. Winning in the bear pit of Pittodrie on Sunday is strongly advised.Rangers out of Europe after wretched penalty defeat in Jablonec’Mortified’ McInnes takes responsibility for Rangers’ European exitLatest Rangers news, analysis and fan viewsWhat are Rangers? What is their identity?Rangers were so flat in the Czech Republic, meandering about like confused men, showing weakness in the tackle and not a scintilla of wit. McInnes changed the shape of his four or five times and the poverty of their play didn’t improve one iota.”I look at us now and I’m thinking, well, we’re no’ great as a possession-based team at the minute,” said McInnes in explaining his constant switches.”We’re not a counter-attacking team enough, or effectively enough, at times. We don’t look like a team who are happy when we go direct. And teams need to be something.”Quite. And what are Rangers? What’s their identity? What are they good at? In what areas are they improving?McInnes was appointed in June, had a full pre-season, had six games and then a week off to prepare for the trip to Jablonec, only for Rangers to produce their worst effort of this, and many other, seasons.During the dog days of his reign at Rangers, Russell Martin was once asked if he could name one or two things that were better on his watch – and he couldn’t do it. If McInnes was asked the same question now then there’s no guarantee that he would come up with an answer, or at least, an answer that rang true.Nobody really knows what his Rangers are, least of all McInnes, you