Celtics, Spurs and Lakers come to mind, who had third options with numbers comparable or better than Bosh and Love.
Bosh averaged 17.3 in his LeBron era with a high of 18.7; Love 17.0 so far with a high of 19.0
Spurs
98-99: Duncan-21.7/Robinson-15.8/Elliot-11.2
02-03: Duncan-23.3/Parker-15.5/Jackson-11.8
04-05: Duncan-20.3/Parker-16.6/
Ginobili-16.0
06-07: Duncan-20.0/Parker-18.6/
Ginobili-16.5
13-14: Parker-16.7/Duncan-15.1/Leonard-12.8
Lakers
99-00: Shaq-29.7/Kobe-22.5/
Rice-15.9
00-01: Shaq-28.7/Kobe-28.5/Fisher-11.5
01-02: Shaq-27.2/Kobe-25.2/Fisher-11.2
08-09: Kobe-26.8/Gasol-18.9/Bynum-14.3
09-10: Kobe-27.0/Gasol-18.3/Bynum-15.0
Celtics
07-08: Pierce-19.6/Garnett-18.8/
Allen-17.4
So out of 11 teams, 4 have had their 3rd options put up similar numbers, 1 rounded up (00 Lakers) and another which saw both the #1 and #2 sacrifice 4-5 FGA each to be equal to their #3 (Celtics).
While it has been done, it's not that common particularly after the fastbreak 80s era. Let the Coli tell it your top 3 players should all have a green light and average 22+, at least when talking about LeBron.