Germany's rising star Marco Reus expressed his delight on Saturday at how things have changed around for his Borussia Moenchengladbach team going from a relegation play-off last season to top of the table.'Gladbach knocked Bayern Munich off the top of the league on Friday night in a 3-0 win at Cologne with former Germany striker Mike Hanke getting off the mark for the season with a double.Having kept his side up last season only after they won a relegation play-off, Swiss coach Lucien Favre has worked a miracle this term by turning 'Gladbach into genuine title contenders.'Gladbach have the chance to underline their credentials as title contenders next Saturday when they host defending champions Borussia Dortmund.Reus, 22, is one of those who has benefited most from his team's rise having played his way into the Germany squad, but the attacking midfielder says 'Gladbach's win at Cologne showed how well things are currently going."We took an early lead and then it's difficult for the opponent to come back to us again, because right now we are in a situation in which we manage to do almost anything," said Reus, who has scored 10 goals in 14 leagues games this season."We put in an excellent performance, we played very calmly and didn't allowed them many clear chances."The wins leave 'Gladbach a point clear of Bayern, who play Mainz on Sunday, and three points clear of third-placed Borussia Dortmund, who host neighbours and bitter rivals Schalke on Saturday.Favre says his team could have scored far more against Cologne."I am extremely satisfied, that was very good for us to get an away win, especially at Cologne which is not as easy as some may think," he said, with his side having already beaten Bayern in Munich this season."We could have even ended the first half with one goal more."We wanted to then make it 3-0 soon after the break and we managed that, but we could have won 4-0 or 5-0."