SV Hamburg on Monday parted ways with coach Tim Walter in the wake of inconsistent results which have raised fears they could fail to win promotion back into the top flight Bundesliga yet again. The decision came in the wake of a second straight 4-3 home defeat, on Friday against Hanover. Hamburg said that assistant coach Merlin Polzin would be in charge for now, with the next game set for Saturday at lowly Hansa Rostock. Former European and Bundesliga champions Hamburg are placed third in the second division which would earn a play-off. The top two finishers gain direct promotion. “We underwe…