Absolutely this. Why can’t we breed bowlers that can nudge 150kph? It would make us unplayable at home and able to compete on tracks such as Brisbane and Perth
Conditions have something to do with it. Australians tend to lose 5mph or so when they come over here and bowl on these pitches.
I guess the common argument would allude to the impact of one day and 20/20 forms of the game, where fast bowlers are nudged towards because of the short and sharp spells they can bowl (e.g. Chris Jordan), but that wouldn't explain how some other countries still managed to find and foster fast bowlers for Test cricket.
I've always felt that part of it is down to fatalism in the English game. If a fast bowler suddenly emerges, they'll try him out, but they won't do much with him. Look at some of the ones we've had in the past - the likes of Devon Malcolm never really progressed. Finn has bowled 100mph but still looks like a player who doesn't understand himself most of the time. Same goes to some extent for Plunkett.
Look at Broad. Not a real quickie, but quite decent at his best, but if Australian coaches had got him earlier in his career I'm sure they would have worked to make him more consistent and incisive. Here we just say, 'Ah, he's one of those bowlers who blows hot and cold' and leave him pretty much to remain inconsistent.
Most of the fast bowlers around now seem to have been hindered by recurring injuries that suggest inadequate expertise in terms of fitness and sports science. We do produce fast bowlers but they're almost immediately chronically crocked fast bowlers. Tymal Mills, of course, simply had a congenital problem. But Meaker showed promise at Surrey until he developed nagging injuries, as did Matt Dunn at Surrey.
Then there's the fact that county cricket doesn't exactly encourage fast bowlers to stretch themselves. Mark Footitt was regularly bowling at 85-90 mph for a brief period a few years ago but then seemed to just get bored and drifted away.
Jamie Overton looks like he could become a really dangerous fast bowler if coached well and challenged, but will he get that push? I rather doubt it. The selectors will just watch him trundle through some so-so county games and leave it at that.