I've read and heard it suggested that the TE situation is dire enough that the Ravens should sign a proven veteran tight end such as Gary Barnidge, formerly of the Cleveland Browns, to ensure they have someone who can handle the job.
But I think it's too soon to suggest the Ravens absolutely have to make a move. It's possible this could end up being a summertime worry that fades.
Keep an eye on Ben Watson. He's one year removed from a 74-catch season, and he's a pro's pro, adept at both blocking and catching. It was apparent at the team's mandatory minicamp last month that he is in terrific shape. He was on the field for some drills.
The Ravens looked very good at the position with six TEs not that long ago, but now there are major questions. Dennis Pitta's hip injury likely means his football career is over. Darren Waller is suspended for a year. That leaves Watson, Nick Boyle, Crockett Gillmore and Maxx Williams. It seems the team is really counting on the return of Watson to lead the way this season with Boyle also possibly getting a good look.