By Ewan Murray Thomas Tuchel’s stock has taken a pretty significant hit in recent months. The Bayern Munich boss will leave the Allianz Arena at the end of the season following conversations with the club’s hierarchy, with the Bundesliga champions in the midst of a torrid run of form. The German giants sit eight points off the top of the Bundesliga table, are a goal down from the first leg of their Champions League last 16 tie with Lazio, were hammered in the DFL Supercup against RB Leipzig at the start of the season and were knocked out of the DFB Pokal by third division side Saarbrucken. It …