There was never really any doubt in my mind that Hagel would assume the position. This is President Obama's second term to make or break. The fuss has been raised so that Hagel's moves can be more readily attacked by the GOP.
Hagel's moves will be President Obama's moves and Kerry is also President Obama's man full on man. These years will show what President Obama intends to do with Foreign Policy when Congress is reticent on fiscal policy.
Whatever anyone wants to say about President Obama, he has won his second term and he's come in with a forceful one. It attacks the Republicans on many fronts like a world war on Republicanism. So yeah, the Republicans are one angry bunch.
President Obama's second term dance has begun, he's not one to sit and do nothing. He is an organizer and he's organizing a furry. Outside of legislation.

Watch for legislation in year 3 & 4. By then he might well have worn the Republican party out.
Yeah, he's got term 2 figured out. He might not get everything he wants, but he's not getting on the plan, he's on his plan.