Obama's nomination of Hagel is an in your face insult to the American jewish community and all Americans who believe we should support Israel as the free democracy ally in the middle east.
The Republican party has in essence rejected Hagel as an embarassment and is trying to push him or Obama to withdraw this nomination. It is not likely anyone in America can be confident Hagel will serve effectively. However, Obama doesn't listen to advice from his cabinet and also doesn't give specific orders. He was after all missing in action regarding the attack of Bengazi consulate and CIA facility.
Consequently, he doesn't care how badly Hagel will perform as he can throw Hagel under the bus any time he needs a scapegoat.