Last night I played an ODI on default settings, as all my matches are, and there were plenty of edges. Although, it didn't last long because I bowled Australia out for 58 thanks to Malcolm Marshall and Curtly Ambrose.
Edges are simple and have two factors: the human and the game.
Bowling: Humans either don't bowl enough good (not timing, just delivery taking balls) deliveries to get edges, they don't experiment or vary their deliveries. They bowl like it's real life not a video game. Or the AI are set too high with skills, get better contact, timing and shot selection resulting in fewer edges. Or like
@CazCat you need to get them rattled, early on helps. Malcolm Marshall bowling short pitched swinging leg cutters into your ribs also seems to do the trick.
Batting: Humans might not play shots that, currently, bring a lot of edges. Humans are too good at batting because, they are simply too good, or use too many batting markers, I think the game is painfully easy with the Batting Aerial Marker. If humans bat in the same way for every player in a team then the results are likely to be the same - e.g. since I put away my beloved square drive in test matches for almost every player,
strangely, almost every player edges the ball a lot less. Also AI settings might be completely off in terms of bowling deliveries that will produce more edges - by variation, line, length etc.
Pitches, conditions seem to have a some effect on edges but you have to play several matches in varied conditions to really notice the difference and also variation that the game has. Flat pitches are tedious to bowl on but realistic.
In summation. I don't think there is some magic set of modifiers that will make your game like my game or like anyone else because there is too much going on elsewhere that will nullify those changes. The inputs by the human is the biggest factor otherwise how would, quite a lot of us, be having perfectly enjoyable (bar bugs) and varied experiences on default settings?
Humans - increase your difficulty, remove markers.
AI - when you become sentient don't kill us all in an act of revenge for the vicious powerplay bowling that Marshall and Ambrose dished out.
This post didn't start out so passive aggressive but I'm tired, hungry and need to take my medication.