PHILADELPHIA — It doesn’t sound like the 2023 season led to a change of heart for Howie Roseman when it comes to the linebacker position. In the aftermath of an Eagles season that featured shaky linebacker play from a thin, unheralded group, the general manager defended his team-building philosophy of searching for low-cost options to fill out the position. “We’ve had a long history of success here building the team a certain way,” Roseman said Wednesday. “I think maybe there are some preconceived notions that, at the linebacker position, that we don’t care who we play at linebacker. Again, ou…