Jupp Heynckes is happy to have Franck Ribery back on song but cannot take undue risks with Bayern Munich star Arjen Robben still sidelined.
While Bayern Munich opened a nine-point lead atop the Bundesliga on Wednesday, Jupp Heynckes was not completely satisfied.
Robert Lewandowski scored the only goal in the second half as Bayern Munich were made to earn a narrow victory over struggling Cologne.
Borussia Dortmund proved they can play "really good football" in Tuesday's away victory over Mainz, according to new boss Peter Stoger
Sokratis Papastathopoulos scored the goals as Peter Stoger made a successful start to life at Borussia Dortmund.
Bayern Munich coach Jupp Heynckes is satisfied with the performance of loan star James Rodriguez, who is still adapting to the Bundesliga.
Arjen Robben and Franck Ribery will be out of contract at Bayern Munich in June, but discussions over their futures are planned.
Borussia Dortmund are "not comparable" to Bayern Munich and Bayer Leverkusen were turned down, so Louis van Gaal remains out of work.
David Wagner was clear on whether Borussia Dortmund had approached him about replacing Peter Bosz.
Reports Bayern Munich will swoop for Bernd Leno to ease their goalkeeping crisis have been vehemently denied by the Bundesliga leaders.