Most Angus seed stock breeders are outcross as you defined it, but more and more I keep looking at linebreeding programs (OCC and Sinclair of note). Now I'm thinking, I may not even qualify as a good breeder at the 4th generation, if all I'm doing is plugging in the bull of the year and just outcrossing the genetics, time and time again.
Everybody gets to choose what they do. In an outcross plan as you mentioned it covering many current breeders. Outcomes, the way I see it, are that you know what you had, if you stay current with new young bulls you get to discover the good and the bad as soon as possible and you never have more or less than other contemporaries. To always select "new" you need a system to select the new. That is where EPDs begin to control as you have little chance to see a lot of sibs or the full knowledge of the latest source herd that produced the bull that is hot and current. You learn from what they tell you, the numbers or the pictures they show you.
So, I'm not saying any option is wrong as it it personal choice. The constant buying of unknowns does leave a breeder with a higher degree of vulnerability in my opinion.
I will add merely for discussion purposes and not to cast stones nor to endorse. The Coneally thread discussion was short and did not give a set in stone endorsement of all bulls from there being equally desirable. I surely do not to talk about another Angus program anymore that has been over discussed here but the breeding program's results have folks with favorite bulls and semen sale sites have the semen from their bulls starting at $5 and some newer bulls would not be available for $1000 according to some. Are the programs breeding for differences or does the outcross efforts always lead to differences?