It takes a lot of time and effort to change a Speedway Track. The initial track when first built, is often not fit for purpose, and overtaking is at a premium.
I know this having been a Lakeside (Arena Essex) supporter for most of my life. The original, flat as a pancake track with sticks, not safety fences, was woeful. Over the years it improved and with our current track curator, we witness a great deal of overtaking - as the bends now have more banking and the shape in/out of them has been significantly changed. Just to add, don't go by comments made by other people on here that still knock Lakeside, and do not go by our camera-shy performances whenever Sky are in town! We do witness a great deal of overtaking - much more so than many away tracks that I've visited.
Just to add, in the case of Leicester, why is there so much distrust from some quarters? You have possibly the most forward-looking promotion within the Premier League, and you should get behind them 100%. Everything I read about Leicester suggests that you are a success story in the making - so why the negativity from some 'fans'?
Rome may not have been built in a day, and Speedway Tracks conducive to good racing, aren't built in a couple of seasons!