Gundogan is very good for tiki taka after about six years with Pep Guardiola at Manchester City. Even Pep upgraded initial tiki taka from Barcelona to Bayern Munich then Manchester City, the core idea of tiki taka was digested by Gundogan. He will not have difficulty in Barcelona especially we saw Xavi did not change the initial tiki taka too much in one season and a half with Barcelona.
Gundogan will have no trouble with Xavi's game tactics. he will be a tremendous support for Lewandowski. this season could be the most productive season for Barcelona I think. I don't understand why Pep could let Gundogan go to Barcelona. he is one of City's important players in getting a trophy this season. I'm sure it will be Xavi's luck this season.
Gundogan won't face too much trouble adjusting to Barcelona's squad. Gundogan is a very experienced player, while Xavi is very helpful. With Xavi's support, Gundogan may be able to adapt to Barcelona's style of play very quickly. Also, I think Xavi often follows Guardiola's match tactics. Since Gundogan has been with Guardiola for so long, I think Gundogan will play well with Xavi's match tactics. Gundogan has helped stabilize Manchester City's performance. Barcelona will also have high expectations from Gundogan.