Oliver Glasner has one position he wants to strengthen this summer and there are already several options being linked to Crystal Palace. This summer, as we are all expecting, will be the busiest in years for Crystal Palace, with Dougie Freedman set to have to work overtime. This is because appointing a manager like Oliver Glasner means the club will likely have to back him as he wouldn’t have taken the job if he hadn’t made promises of investment. Therefore, all the rumours currently flying around probably hold some weight with some positions known to be a priority for the Austrian. Now, it ha…