How many QB's did Pete put in the NFL? How many players overall? Remember he didn't take over a recruiting power house he built one.
Harbaugh had Luck in college and landed on an obviously talent loaded Niners team, so the theory about long term success is a very valid one.
Honestly Harbaugh reminds me alot of Jim Mora and I think we will see that side when the going gets tough and like any NFL team, the going will get tough and that is when your real grit shows through.