Bayern Munich was tempted by a sizable amount of money selling Yann Sommer to Inter Milan and this was a financial advantage for Bayern Munich but on the other hand it also had a bad impact on the loss of a goalkeeper they could rely on, the biggest mistake was selling Yann Sommer Bayern Munich did not first look for a replacement goalkeeper before agreeing to sell Yann Sommer with Inter Milan.
Now Bayern Munich are on the verge of having trouble finding a goalkeeper for this summer and they really need to be able to convince De Gea and make a better offer than what Arsenal have offered for De Gea.
Ridiculous decision but caused the club to lose greatly in my opinion because Bayern Munich's management did not think long in advance what steps to take immediately before or after selling Yann Sommer.
We'll see if De Gea can join Bayern Munich to become their goalkeeper or if Bayern Munich doesn't have a main goalkeeper this season.
Bayern Munich is facing a need to find a replacement goalkeeper with the Bundesliga kick off 10 days away. David De Gea has emerged as a candidate for the position thanks to his success with Manchester United which showcased his skills. But the fact that De Gea is currently an agent makes him an attractive option for a short term solution. But Bayerns plans are further complicated by the sale of Sommer and the uncertainty surrounding Neuers return.
Despite Sommers performance during pre season Neuers absence raises doubts about the rationale behind selling Sommer. I think in these uncertainties, in the goalkeeper position it seems logical for Bayern to consider De Gea as their best choice available.