What the Sixers are getting in new arrival Caleb Martin

Caleb Martin made a name for himself with a strong run down in Miami, and he appears set to become a starter after signing a deal in free agency with the Sixers. Will he help Philadelphia get over the top?
Let's take a look at the arriving player who signed over the weekend.
Does he make sense as the fifth starter?
Yes. Well, at least if you're able to set aside the "They need a power forward!" thought that many have at the moment.
Martin is not the big, bruising forward that a lot of people seem to believe they need. Frankly, that player doesn't really exist in today's NBA (at least not with any real frequency). He is the picture of a modern role player, someone who splits his time somewher...