I assume that Waller will retire and return the starting job to Bellinger from whom he took it last season and was clearly the better of the two in his 12 games played than Bellinger was in all 17. And so in that case, Bellinger will again be TE1 unless he loses it to this year's fellow 4th Round pick Theo Johnson. As for Jack Stoll, the Eagles UFA castoff, he's had only 20 catches in 3 years which sounds a lot like like a spare to me.
Cheers!
Cheers!