Petitioner Willie Seth Crain, Jr., a prisoner represented by counsel in the District Court for his proceedings under 28 U.S.C. § 2254 , moved pro se for leave to file an amended motion for appointment of independent counsel and again moved pro se for appointment of independent supplemental or substitute counsel. The Court denied the first motion on July 22, 2015 and struck the second on February 8, 2018. Both appeals are currently pending before this Court. See Crain v. Sec'y, Fla. Dep't of Corr. , No. 15-14347-P (11th Cir. filed Sept. 28, 2015); Crain v. Sec'y, Fla. Dep't of Corr. , No. 18-11604-P (11th Cir. filed April 12, 2018). We dismiss both appeals for lack of subject-matter jurisdiction because a motion to substitute counsel is not an appealable order under 28 U.S.C. § 1291 or Cohen v. Beneficial Industrial Loan Corp. , 337 U.S. 541 , 69 S.Ct. 1221 , 93 L.Ed. 1528 (1949).

The motions are not appealable under § 1291 because Crain's proceedings under § 2254 are still pending. 1

To fall within the collateral-order doctrine, an order must "conclusively determine *1296 the disputed question, resolve an important issue completely separate from the merits of the action, and be effectively unreviewable on appeal from a final judgment." Firestone Tire & Rubber Co. v. Risjord , 449 U.S. 368 , 375, 101 S.Ct. 669 , 674, 66 L.Ed.2d 571 (1981) (quoting Coopers & Lybrand v. Livesay , 437 U.S. 463 , 468, 98 S.Ct. 2454 , 2458, 57 L.Ed.2d 351 (1978) ).

A motion to substitute counsel does not fall within the doctrine because the decision would not otherwise be unreviewable. Were the District Court to deny Crain's § 2254 petition on the merits, we could also review its decision to deny his motions to substitute counsel. See Brown v. United States , 720 F.3d 1316 , 1336 (11th Cir. 2013) (reviewing simultaneously the denial of a § 2255 petition and the denial of a motion to withdraw "conflict-encumbered counsel"). In the criminal context, the "unreviewability" element goes unmet when the relief one is entitled to "would be largely satisfied by an acquittal resulting from the prosecution's failure to carry its burden of proof." Flanagan v. United States , 465 U.S. 259 , 267, 104 S.Ct. 1051 , 1056, 79 L.Ed.2d 288 (1984) (quoting United States v. MacDonald , 435 U.S. 850 , 859, 98 S.Ct. 1547 , 1552, 56 L.Ed.2d 18 (1978) ). Though habeas proceedings are civil in nature, see Debruce v. Comm'r, Ala. Dep't of Corr. , 758 F.3d 1263 , 1294 (11th Cir. 2014), the same principle holds: if Crain could eventually obtain release from, what he alleges to be, unconstitutional confinement, nothing about the Court's decision is unreviewable. This case, then, is unlike the denial of a pre-trial motion to reduce bail, where the order becomes moot if review must await conviction and sentence, or a motion to dismiss an indictment under the Double Jeopardy or Speech or Debate Clauses, which provide immunity from prosecution, because here, there is no risk of "irretrievabl[e] los[s]." Id. at 266, 104 S.Ct. at 1055 .

Of course, we do not write on a blank slate. In Chavez v. Sec'y, Fla. Dep't of Corr. , 742 F.3d 940 , 944 (11th Cir. 2014), this Court collaterally reviewed a district court's denial of a § 2254 petitioner's motion to substitute counsel. Because the Court did not address subject-matter jurisdiction, however, we are not bound by that holding under our prior-panel rule. See Main Drug, Inc. v. Aetna U.S. Healthcare, Inc. , 475 F.3d 1228 , 1231 (11th Cir. 2007) ("[W]e are not bound by a prior decision's sub silentio treatment of a jurisdictional question." (quoting Okongwu v. Reno , 229 F.3d 1327 , 1330 (11th Cir. 2000) ) ). And we are confident that the denial of a motion to substitute counsel is not within the "narrow exception" to the final-judgment rule. Flanagan , 465 U.S. at 265 , 104 S.Ct. at 1055 (quoting Risjord , 449 U.S. at 374 , 101 S.Ct. at 673 ).

For these reasons, the above-mentioned appeals are DISMISSED for lack of subject-matter jurisdiction.

SO ORDERED.