Judges of Israel

Why did God give Israel "judges" (Acts 13:20) for the next 450 years?
When God finally allowed Israel to enter the Promised Land, He commanded it to drive out all idolatrous pagans inhabiting it. Instead of obeying God, Israel began to worship the idols of the pagan nations that it didn't drive out, and was punished by God, who put Israel in bondage to invaders. When the Jews cried out in repentance, however, God raised up judges to deliver them from bondage, as well as to instruct them and judge their disputes. But when those judges died, Israel returned to worshiping idols, and this cycle of idolatry - bondage - deliverance repeated itself for 450 years through fifteen judges, who varied in their faithfulness to God.

Who were those fifteen judges of Israel during this era?
Othniel (Caleb's nephew), Ehud, Shamgar, Deborah (the lone woman), Gideon, Abimelech, Tola, Jair, Jephthah, Ibzan, Elon, Abdon, Samson, Eli and Samuel

Why did Israel ask for a king after those 450 years?
Their pretext was the corruption of Samuel's sons, but their real reason was their rejection of God's direct rule, albeit through his judges and spokesmen,  and their desire for a human ruler whom they could see, hear and touch, like their neighbors': "Now it came to pass when Samuel was old that he made his sons judges over Israel. The name of his firstborn was Joel, and the name of his second, Abijah; they were judges in Beersheba. But his sons did not walk in his ways; they turned aside after dishonest gain, took bribes, and perverted justice. Then all the elders of Israel gathered together and came to Samuel at Ramah, and said to him, “Look, you are old, and your sons do not walk in your ways. Now make us a king to judge us like all the nations.” But the thing displeased Samuel when they said, “Give us a king to judge us.” So Samuel prayed to the LORD. And the LORD said to Samuel, “Heed the voice of the people in all that they say to you; for they have not rejected you, but they have rejected Me, that I should not reign over them." (1 Samuel 8:1-7).

Is there any desire to be led by a 'tangible' human being instead of God in your heart when you watch your pastor preach?